Close
Close
Narrow Results
 Follow Your Favorites!
NotificationsSign in to get custom notifications of new products!







GenreProduct TypeFormat
Mystery   Remove Search Term
Novels   Remove Search Term
Nook Compatible   Remove Search Term
Advanced Search

 
 Hottest Mystery, Novels, Nook Compatible
 
 Newest Titles in This Section
Products found in this section... Sort by: 
 Title    Publisher ▲   Price  
Crime and Punishment! [BUNDLE]

Crime and Punishment! [BUNDLE]


This special bundle product contains the following titles. A Perfect Crime Regular price: $1.99 Bundle price: $0.06 Format: Multiple File Formats Big Pete Rustica, Tiny Murdoch, and Maurice “The Leech” Lévesque are perfect thieves. They have never been caught.A rich industrialist hires them to use alien technology to commit the perfect crime.A...   [click here for more]
53rd Street Publishing  $26.92 $6.99

Add to DriveThruFiction.com Order  
Old Bones

Old Bones


Someone will kill to ensure the past stays buried. Heather is a retired bank officer now a fiction writer. During her research she discovers that truth is turning stranger than fiction as she and her new neighbor and friend, Joy, face a burglary, a car crash, and an attempted murder in their search for a killer from the past. Will they survive as they try to solve the mystery of the “Old...   [click here for more]
53rd Street Publishing  $4.99

Add to DriveThruFiction.com Order  
Shear Murder

Shear Murder


In this exciting prequel to Bad Loyalty we first meet hairdresser, Trudy Wilson. Trapped in a marriage to a drunk for a husband she faces a failing business and a dead woman, Sharon Carstairs, she’s suspected of murdering To clear herself and find the real murderer Trudy joins forces with Sharon’s biker brother, Bruce. Join them on a terrifying ride to a highway of fear, murder and...   [click here for more]
53rd Street Publishing  $4.99

Add to DriveThruFiction.com Order  
The Last Serial Killer

The Last Serial Killer


In the not-too-distant future, medical advances rid the world of serial killers forever — all except one, The Last Serial Killer. That killer is about to wreak havoc. Using right wing radio host and Gulf War III veteran, Todd Road, as an unwilling conduit to aliens who claim he's innocent, the killer gets out of prison. Todd and FBI agent, Angela Cody join forces to recapture the killer—encountering...   [click here for more]
53rd Street Publishing  $4.99

Add to DriveThruFiction.com Order  
Con Job

Con Job


Jacob just wanted to have a good time with his friend Samantha and fellow geeks at the fan convention. But when dead bodies start turning up, Jacob has to start a little early on his hoped-for detective career. After all, the police are out of their depth in a world where nearly everyone wears a costume or uses an alias. But Jacob has a secret of his own, and it looks like someone is bent on revealing...   [click here for more]
Aeclipse Press  $3.99

Add to DriveThruFiction.com Order  
Kitsune-Mochi

Kitsune-Mochi


Sequel to the award-winning Kitsune-Tsuki Following the search for the shape-shifting kitsune, onmyouji Tsurugu no Kiyomori serves Naka no Yoritomo and his new wife Kaede, protecting their household from the supernatural and warning of more mundane threats. Elsewhere, a murder is committed in Naka's name, and an exiled onmyouji determines to wreak his own justice...   [click here for more]
Aeclipse Press  $3.99

Add to DriveThruFiction.com Order  
The Butcher of Souls

The Butcher of Souls


When the most powerful mage in North America hires me to solve a case, I accept it, because I need the money and know I'll get paid well if I solve it. Turns out that one of the most dangerous magical criminals ever--whose power equals that of the Master Mages themselves--has escaped from prison. His goal: Kill my grandfather, who helped put him behind bars decades ago and who is also currently too...   [click here for more]
Annulus Publishing  $3.99

Add to DriveThruFiction.com Order  
The Eater of Souls

The Eater of Souls


My name is Noah House: magical detective, demon slayer, and former Chosen One. After being exiled out of polite magical society for a terrible mistake I made, I'm forced to start my own magical detective business to make do. I take the cases no one else takes, solve the crimes that the Government won't, either because they are illegal or too dangerous or would ruin the risk of certain high profile...   [click here for more]
Annulus Publishing   FREE 

Buy Now  
The Feast of Souls

The Feast of Souls


When a pretty young woman comes to me for help in finding her father, I accept, even though I don't need the money. Seems like a simple case and maybe I'll even get the woman's number after this is over. But when it turns out that her father was kidnapped by a cult run by half-demon/half-human hybrids hellbent on reuniting the forces of Hell, I find myself racing against time to stop them before...   [click here for more]
Annulus Publishing  $3.99

Add to DriveThruFiction.com Order  
False Flag  (Bowen Conspiracy Series #1)

False Flag (Bowen Conspiracy Series #1)


1991: A plan to destabilise Hong Kong is emerging; the key players are being put into place, the wheels are in motion and innocent people will die. Frank Bowen is a Londoner on holiday in tropical Thailand. Half drunk and strapped for cash, he’s the perfect bait for a political plot that will leave him running for his life, with nowhere to turn. An international conspiracy thriller by Jay...   [click here for more]
Bonafide Media  $2.99

Add to DriveThruFiction.com Order  
Pandora Red (Bowen Conspiracy Series #2)

Pandora Red (Bowen Conspiracy Series #2)


Frank Bowen's mission is to find a GCHQ whistleblower but in doing so unwittingly risks everything, including his own family's safety. As part of a covert team, assigned to dangerous missions, Bowen believes he knows what he's up against, until a team of Russian mercenaries are thrown into the mix, leaving everyone and everything hanging in the balance. It's a race against the clock to save all...   [click here for more]
Bonafide Media  $3.99

Add to DriveThruFiction.com Order  
The Morecambe Medium

The Morecambe Medium


It's 1895 and there's murder in the air! Enter Augustus Mulberry and Arthur Touchstone, Consulting "Detectorators". Mulberry and Touchstone are a pair of rather defective detectives, who ply their trade in the delightful Victorian seaside town of Morecambe. Will they be able to cope with a proper case? Can they catch the killer? Or will they be too distracted by teashops, spooky seances...   [click here for more]
Cakebread & Walton  $4.99

Add to DriveThruFiction.com Order  
Mayday: A Kaiju Thriller

Mayday: A Kaiju Thriller


WE WON THE WAR, BUT CAN WE SURVIVE THE NIGHT? Nineteen years ago, the Maydays attacked. Five colossal monsters rose from the earth and laid waste to cities around the globe, pushing humanity to the brink of extinction. Now those monsters are our slaves, fighting each other for our amusement in brutal matches broadcast across the world, courtesy of the Volkov Media Corporation. A...   [click here for more]
Cheeky Minion  $4.99

Add to DriveThruFiction.com Order  
Marked For Death

Marked For Death


Nurse Anne Davis needs a new start at life,so she packs up and leaves her past behind in Boston. She intends to have nothing to do with men while she heals from the horrors inflicted by her deceased husband. Dr. Nicholas Anderson isn't looking for a long term relationship, but despite his best effort, he's wildly attracted to Anne. How could he know that when her past catches up with her, his plans...   [click here for more]
Deslisle Publications  $2.99

Add to DriveThruFiction.com Order  
Sherlock Mars

Sherlock Mars


A riotous concoction: fine dining, virtual reality, and murder. Delightfully weird. Molly Marbles runs a successful bistro on terraformed Mars. When a virtual restaurant opens next door, offering the experience of delicacies from across the solar system with none of the calories, what will it do to her business? Then, when the virtual restaurant’s owner is murdered in her kitchen, Molly,...   [click here for more]
Guardbridge Books  $1.99

Add to DriveThruFiction.com Order  
Days of Destiny

Days of Destiny


Days of Destiny begins in San Francisco. Richard Liu, Jason's friend and neighbor, is taking Jason and Daniel up to Chinatown to see the spectacular night time New Year's parade, preceded by a fabulous dinner at a Taiwanese restaurant owned by his Aunt Mai. On the way to see the parade, the three take a shortcut through a building where they discover Jian-heng Chen, an eight-year-old...   [click here for more]
Hal Peterson Media Services  $7.99

Add to DriveThruFiction.com Order  
Double Fugue

Double Fugue


The second novel in the Hunter & Holmes series, Double Fugue continues to chronicle the adventures of Jason and Daniel that summer. The title refers to the two intertwining stories of the book, and the psychological impact that its events have on the two people Jason and Daniel assist. The main story line involves Daniel and his chance meeting with rock star Ethan Savage who is...   [click here for more]
Hal Peterson Media Services  $7.99

Add to DriveThruFiction.com Order  
Eyewitness News

Eyewitness News


After the stunning ending to their adventures in Family Matters, Jason and Daniel are determined to spend the remainder of the summer relaxing and kicking back. Now that Jason and Daniel have pledged to go steady with their girl friends, Laura and Diana, they discover that they have new obligations and personal issues to deal with. Jason is eager to play interleague basketball with his friend...   [click here for more]
Hal Peterson Media Services  $7.99

Add to DriveThruFiction.com Order  
Family Matters

Family Matters


School is out, but the lazy carefree days of summer are soon filled with more adventures for the Hunter & Holmes detective team. Jason and Daniel have a very unusual meeting with Enrico Feraducci, a Mafia godfather who has a special request for them. Jason and Daniel travel with Joe Connor to southern California to try and broker a reconciliation for him with his estranged daughter...   [click here for more]
Hal Peterson Media Services  $7.99

Add to DriveThruFiction.com Order  
Jason's Network

Jason's Network


It is spring in the Silicon Valley. Jason Hunter is continuing his crusade against predators and those who would abuse children. Through his Whatever Foundation, Jason develops a new tool for kids called Jason’s Network. It is an online resource for kids to help them fight against abuse and predators. It provides a way for kids to report suspected abuse without having to make...   [click here for more]
Hal Peterson Media Services  $7.99

Add to DriveThruFiction.com Order  
The Kidnapping

The Kidnapping


The first novel in the Hunter & Holmes mystery series, The Kidnapping, describes how the detective team of Hunter & Holmes was formed. As the series begins, teenagers Jason and Daniel are enjoying the carefree days of summer and their extended break from school. Their lives are radically changed when Jason, while walking through City Park in broad daylight suddenly goes...   [click here for more]
Hal Peterson Media Services  $6.99

Add to DriveThruFiction.com Order  
Troubled Waters

Troubled Waters


It’s July. Beautiful summer weather and time off from school should mean a relaxed vacation for Jason Hunter. Instead he finds his future filled with uncertainty. Jason has been told by nearly everyone he knows, including Daniel, his best friend and detective partner, that he needs to take time off from any detective work after the brutal attack he and his steady girlfriend Laura experienced...   [click here for more]
Hal Peterson Media Services  $7.99

Add to DriveThruFiction.com Order  
When The Chips Are Down

When The Chips Are Down


When The Chips Are Down is the third novel in the Hunter & Holmes Mystery Series. Spring break turns out to be anything but that for teenagers Jason Hunter and Daniel Holmes. They agree to help their friend Richard Liu and his father Junjie try and figure out what is going on at his father’s work place, the DCC Chip Company, which has been recently plagued by hijackings...   [click here for more]
Hal Peterson Media Services  $7.99

Add to DriveThruFiction.com Order  
The Atheist

The Atheist


This product includes the ePub and Mobi (Kindle) formats of the book. Jillian Campbell doesn’t believe in God. When local pastor Jim Preston tells Jillian that God has chosen her to join a secret religious organization called the Deiform Fellowship, she dismisses him as a kook. Two days later, Preston is dead, and Jillian stands accused of his murder. With mounds of evidence condemning...   [click here for more]
Norn Publishing  $4.99

Add to DriveThruFiction.com Order  
The Cult

The Cult


This product includes the ePub and Mobi (Kindle) formats of the book. When ex-members of a cult die under suspicious circumstances, the Fellowship sends in Jillian to investigate. Still adjusting to her new life, Jillian becomes a dedicated member of the Association of the Sacred Souls, commonly known as the soul healers. As her contact with the outside world dwindles and she grows closer...   [click here for more]
Norn Publishing  $5.99

Add to DriveThruFiction.com Order  
Fallen Idol: A Kyoko Nakamura Mystery

Fallen Idol: A Kyoko Nakamura Mystery


Is it suicide...or murder? When a disgraced former pop star plummets to her death from her Osaka apartment, all signs paint a picture of a troubled young woman who took her own life. But once her parents hire Kyoko Nakamura to learn the truth, the private detective discovers not everything is as it seems. Kyoko’s investigation will lead her into a world of drugs and prostitution, face to face with...   [click here for more]
Percival Constantine  $3.99

Add to DriveThruFiction.com Order  
Murder Walk: A Kyoko Nakamura Mystery

Murder Walk: A Kyoko Nakamura Mystery


TAKE A STROLL WITH DEATH Sex sells in Osaka's Shinsekai neighborhood, and anything can be had for a price. When a teenage runaway turns up dead, an outreach worker has little faith in the police and instead hires private investigator Kyoko Nakamura to find the killer. Kyoko also has no faith in the local police. She used to be one of them, until politics prevented her from helping a stalking victim...   [click here for more]
Percival Constantine  $3.99

Add to DriveThruFiction.com Order  
Sexton Blake on the Home Front

Sexton Blake on the Home Front


SPY-MASTERS, NAZIS AND SECRETS It’s the Second World War, and Sexton Blake is matching minds with the very best… and the very worst. When an innocent woman is condemned as a spy and her fiancé arrested while trying to escape to France, Sexton and Tinker have to travel into enemy territory in their hunt for the mastermind... and on the home front, a man is found murdered - but the suspect doesn’t...   [click here for more]
Rebellion Publishing Ltd  $6.99

Add to DriveThruFiction.com Order  
Sexton Blake’s Allies

Sexton Blake’s Allies


SPIES, PRIVATE EYES AND DANGEROUS WOMEN Every hero has allies; men and women of great ability and character, drawn into their orbit by circumstance and adventure. This was never truer than for Sexton Blake, Britain’s greatest detective From the splendour of the Orient Express to the quite countryside of the Chilterns and the vast Australian outback, Sexton’s allies battled the worst criminals of...   [click here for more]
Rebellion Publishing Ltd  $6.99

Add to DriveThruFiction.com Order  
Tangle's Game

Tangle's Game


NOWHERE TO RUN. NOWHERE TO HIDE. Yesterday, Amanda Back’s life was flawless: the perfect social credit score, the perfect job, the perfect home. Today, Amanda is a target, an enemy of the system holding information dangerous enough to disrupt the world’s all-consuming tech—a fugitive on the run. But in a world where an un-hackable blockchain links everyone and everything, there...   [click here for more]
Rebellion Publishing Ltd  $5.99

Add to DriveThruFiction.com Order  
The Hanging Artist

The Hanging Artist


"Trust me," the insect repeated. Franz did not. What if Franz Kafka did not succumb to tuberculosis at the age of 40? What if he awoke the day after his supposed death to find himself attended by the giant insect he once imagined in his own story The Metamorphosis? And what if he were recruited by a mysterious agency to investigate a rash of bizarre, mysterious murders plaguing 1924 Vienna? Murders...   [click here for more]
Rebellion Publishing Ltd  $5.99

Add to DriveThruFiction.com Order  
The Dreamshifters: Parallel Lies

The Dreamshifters: Parallel Lies


Dreamshifter Jessica Kayne has come to terms with her unusual abilities by vowing never to interfere in other people’s lives again. Yet when events at home take a strange turn, one that can only be explained by interference from another dimension, she is left with no choice. She must use her gift to investigate other parallels, and the shady characters who inhabit them. What she discovers...   [click here for more]
Shelfless  $3.99

Add to DriveThruFiction.com Order  
Fireplay (Jack Emery 0.5)

Fireplay (Jack Emery 0.5)


A chance lightning strike. A reporter in the right place. A scandal that will rock America.
 Journalist Jack Emery has seen it all. Embedded for the New York Standard with the 8th Marine Regiment in the heart of Afghanistan, he has covered everything from firefights to the opening of new schools. But nothing has prepared Jack for the story that is about to explode right in front...   [click here for more]
Steve P. Vincent   FREE 

Buy Now  
Jack Emery Series (Books 1-3)

Jack Emery Series (Books 1-3)


The first three thrillers in the Jack Emery series: The Foundation, State of Emergency and Nations Divided (plus a bonus short story!). Jack Emery is the best journalist on the planet, but when he uncovers a conspiracy that will rock America he’ll need all his skills to defeat it.  Faced with violence and deception, Jack will do whatever it takes to beat this conspiracy. Can he...   [click here for more]
Steve P. Vincent  $9.99

Add to DriveThruFiction.com Order  
Nations Divided (Jack Emery 3)

Nations Divided (Jack Emery 3)


Most people want peace. A few will do anything to stop it. The US President has achieved the impossible, negotiating peace between Israelis and Palestinians. But in conflict this heated, nothing is ever as simple as it seems and desperate people do terrible things. As the countdown to peace reaches zero, Jack Emery learns of a deadly plot to detonate nuclear weapons in America and...   [click here for more]
Steve P. Vincent  $4.99

Add to DriveThruFiction.com Order  
One Minute to Midnight (Jack Emery 4)

One Minute to Midnight (Jack Emery 4)


70 years hoping the bomb doesn’t go off. One chance to do something about it. After having barely survived nuclear annihilation, the leaders of the nuclear powers are close to a historic disarmament agreement. Everyone now knows that one nuclear weapon is one too many. But when a rogue arms dealer tries to destroy the deal, Jack Emery is forced into a battle to the death to save...   [click here for more]
Steve P. Vincent  $4.99

Add to DriveThruFiction.com Order  
State of Emergency (Jack Emery 2)

State of Emergency (Jack Emery 2)


What is the true cost of security? Amid a wave of unprecedented terrorist attacks on American soil, a panicked president declares a state of emergency and hands over control to the Federal Emergency Management Agency (FEMA). As FEMA oversteps the mark and totalitarianism descends across the country, investigative journalist Jack Emery knows he has to act. Facing weekly terrorist...   [click here for more]
Steve P. Vincent  $4.99

Add to DriveThruFiction.com Order  
The Capricorn Deception (Mitch Herron 4)

The Capricorn Deception (Mitch Herron 4)


There’s a new terror in paradise… Mitch Herron has left his past behind. With his evil masters destroyed and his sins absolved, he’s found peace in the South Pacific. But when he’s drawn out of the shadows, Herron is snared in a deadly trap.  Soon, Herron finds himself in the middle of a brutal civil war between two corrupt factions. To escape an island descending into anarchy,...   [click here for more]
Steve P. Vincent  $3.99

Add to DriveThruFiction.com Order  
The Foundation (Jack Emery 1)

The Foundation (Jack Emery 1)


A shadowy group is manipulating society. Now, their endgame has arrived. The zealots of the Foundation for a New America have snaked their way into power. Their tentacles are everywhere — the media, big business, Congress and even the White House. When the Foundation sparks conflict between the US and China, they plan to use the chaos to take over America, but they didn’t count...   [click here for more]
Steve P. Vincent  $4.99

Add to DriveThruFiction.com Order  
The Lazarus Protocol (Mitch Herron 3)

The Lazarus Protocol (Mitch Herron 3)


The nightmare is back. Mitch Herron thought he’d destroyed The Enclave – the corrupt shadow organization he once killed for. But only hours after the victory that cost him so much, Herron finds out some enemies just don't stay dead. The Master is alive and he has his sights locked on Herron.  With a new fight on his hands, Herron hunts his most deadly foe yet across the globe,...   [click here for more]
Steve P. Vincent  $3.99

Add to DriveThruFiction.com Order  
The Mitch Herron Series (Books 1-3)

The Mitch Herron Series (Books 1-3)


The first three action thrillers in the USA Today bestselling Mitch Herron series: The Omega Strain, The Shadow Enclave and The Lazarus Protocol.   Mitch Herron is a deadly assassin. No stakes are too high for his unique set of skills, until a routine mission goes horribly wrong. When Herron is forced down a deadly path to save millions of innocents, his only chance at redemption...   [click here for more]
Steve P. Vincent  $7.99

Add to DriveThruFiction.com Order  
The Omega Strain (Mitch Herron 1)

The Omega Strain (Mitch Herron 1)


Mitch Herron's business is death and business is good.  An assassin without equal, Herron’s latest job is no walk in the park, because fanatics hell-bent on cleansing the planet ambush Herron and turn him into a walking bioweapon. With only days before he's used to spread the most lethal contagion in human history, Herron must hunt down the fanatics and stop their attack, knowing...   [click here for more]
Steve P. Vincent   FREE 

Buy Now  
The Shadow Enclave (Mitch Herron 2)

The Shadow Enclave (Mitch Herron 2)


The hunter is now the hunted.  To save millions of innocent people from a brutal terrorist attack, Mitch Herron disobeyed his mission. Herron knows the cost of breaking faith with his employers – death, no matter what it costs them or how long it takes.  Now, with elite killers on his tail, Herron faces his toughest test yet. Except, this time, he’s the target. But as he fights...   [click here for more]
Steve P. Vincent  $3.99

Add to DriveThruFiction.com Order  
A Deniable Man

A Deniable Man


Susan Whitcomb, a brilliant New York trial lawyer, has learned her craft from the best in the field—Professor Farlan Amory Adams, her Columbia law teacher, millionaire mentor, and eloquent would-be lover. She needs every shred of the rigorous mental training he has given her when, without warning, she is catapulted into the vicious world of international terrorism. Susan’s well-ordered...   [click here for more]
Untreed Reads Publishing  $4.99

Add to DriveThruFiction.com Order  
A Kate Lawrence Trilogy

A Kate Lawrence Trilogy


First three titles in the Kate Lawrence Mysteries: Waiting for Armando, Murder on Old Main Street, and A Skeleton in the Closet. Get to know Kate and her smart, sassy colleagues during the early days of their friendship and working relationship in Hartford and Old Wethersfield, Connecticut. Enjoy three cozy mysteries that are funny, heartwarming and real at a very affordable...   [click here for more]
Untreed Reads Publishing  $6.99

Add to DriveThruFiction.com Order  
A Multitude of Sins (A Conan Flagg Mystery, #2)

A Multitude of Sins (A Conan Flagg Mystery, #2)


"I'LL BE ON YOUR PATIO AT FOUR O'CLOCK. IF YOU AREN'T THERE, I'LL UNDERSTAND...." This is the gist of the mysterious plea for help that Conan Flagg finds lying on the counter of his Holliday Beach Book Shop. The writer is beautiful Isadora Canfield, a concert pianist and daughter of the late Oregon Senator John Canfield, in whose will she would become a millionairess. Isadora wants Conan...   [click here for more]
Untreed Reads Publishing  $4.99

Add to DriveThruFiction.com Order  
Aaron's Wait (An Elliott Smith Mystery, #2)

Aaron's Wait (An Elliott Smith Mystery, #2)


Aaron Stiles is dead. He’s been dead for four years but doesn’t seem to know it. He’s waiting for his partner Bill to come home, and until that happens, he’s not going anywhere. The trouble is, Bill Somers won’t be coming home—ever—because he’s dead, too. The official verdict was suicide, but… The last thing Elliott Smith needs in his latest...   [click here for more]
Untreed Reads Publishing  $4.99

Add to DriveThruFiction.com Order  
After the Auction (A Lily Kovner Mystery, #1)

After the Auction (A Lily Kovner Mystery, #1)


Lily Kovner could not have dreamed that research for a magazine assignment would resurrect a searing memory from her childhood. A fleeting glimpse of a family treasure looted by the Nazis launches "Afikomen" - her quest for justice and restitution spanning three continents. Along the way threats, murder and the revelation of a diabolical secret deal thrust Lily onto an emotional rollercoaster further...   [click here for more]
Untreed Reads Publishing  $0.99

Add to DriveThruFiction.com Order  
All's Well That Ends (An Amanda Pepper Mystery, #14)

All's Well That Ends (An Amanda Pepper Mystery, #14)


Amanda's friend Sasha's stepmother has just committed suicide—although, according to Sasha, Phoebe Ennis would never have killed herself, especially not while having a drink and wearing a red silk blouse and red sandals with four-inch heels. Amanda isn't persuaded, but reluctantly agrees to help investigate the woman's demise, though the evidence for foul play is slim. True, the middle-aged compulsive...   [click here for more]
Untreed Reads Publishing  $4.99

Add to DriveThruFiction.com Order  
An Improper English Mission

An Improper English Mission


When Olympia Brown is invited to attend a religious conference in England, she soon discovers there is more than faith on the agenda. Someone on staff has a well-calculated plan to destroy The Moorlands, including the great stone house itself. Olympia discovers embezzlement, tainted food and a prescient housecat named Thomas, all of which eventually fit into a pattern—but not before she falls...   [click here for more]
Untreed Reads Publishing  $2.99

Add to DriveThruFiction.com Order  
Displaying 1 to 50 (of 270 items) Result Pages:  1  2  3  4  5  6  [Next >>] 
Select Page Number