Detective Reed Mattox, just three months removed from the death of his partner, has turned invisibility into an art form. Switching to the K-9, taking over the graveyard shift, moving to a farmhouse miles outside of Columbus - his every move has become predicated on putting as much distance between himself and the outside world as possible. That distance is shattered, though, when bodies begin turning up in The Bottoms, the poverty-stricken section of town he is assigned to patrol.

Wounded in the line of duty, former K9 Handler Maddie Castle finds herself back to square one. The bullet that shredded her leg took the life of her four-legged partner. The pain of recovery goes well beyond the daily physical torment she endures.

Felix "O" O'Connor is an ex-con from central Ohio who has spent the last seven years working on a ranch in the Big Horn Mountains of Wyoming. Rarely does he venture out into the world and never does it come looking for him. Both of those things change when his twin sister, Alexa "Lex" Borden, calls from Columbus, Ohio, to ask for his help.

After their last deployment, when she got shot, her fiancé, Martinez, got killed, and his bomb-sniffing dog, Elvis, got depressed, soldier Mercy Carr and Elvis were both sent home, her late lover’s last words ringing in her ears: “Take care of my partner.” On the Fourth of July weekend, when all of Northshire celebrates with fun and frolic and fireworks, the dog alerts to explosives and they find a squalling baby abandoned near a shallow grave filled with what appear to be human bones.

Three years ago, Ham retired to a quiet life in the remote desert of Northern Mexico. Realizing what she was doing would likely end in her death, she severed all ties, disappearing across international borders. Her retirement ended abruptly with a single message. The sole person in the world Ham feels the least bit of loyalty to is in trouble, in need not only of Ham but of the very skills that put her into hiding. Acting against every ingrained maxim, and ignoring the myriad warning signs popping up along the way, Ham returns north to find a great deal has changed in her time away.

Call it a premonition. Call it intuition. Call it anything you like, but Pennsylvania State Trooper Jerry McNeal simply thinks of it as “that feeling.” That feeling may come on without warning, so intense he can’t breathe.

It’s tough working nights with the NYPD. The crime rate is high, the hours are terrible, and forget about a personal life. So, when Officer O’Reilly and her K-9 Rolf switch over to the day shift, things look up. She’s even able to find time for a new boyfriend. But when the theft of a priceless painting from the Queens Museum leaves a fellow police officer dead, Erin and her four-legged partner find themselves dealing with dangerous criminals, sleazy art dealers, and obstructive detectives in a race to capture the killers...and just maybe bring closure to a 75-year-old crime.

Meg and Hawk are part of the FBI's elite K-9 unit. Hawk can sniff out bodies anywhere - living or dead - whether it's tracking a criminal or finding a missing person. When a bomb rips apart a government building on the National Mall in Washington, D.C., it takes all of the team's extensive search-and-rescue training to locate and save the workers and visitors buried beneath the rubble.

The small police force of White Rock, New Hampshire is still reeling from the death of Officer Tyler Richardson when they are called to the scene of the accidental drowning of an out-of-town camper. But Chief Sam Mason and Sergeant Jody Harris soon discover the drowning was no accident. Someone murdered Lynn Palmer and staged the scene to make it look that way. With a pool of suspects who aren't telling the truth and a corrupt mayor who wants the case solved yesterday, Sam and Jo follow a puzzling trail of clues with a surprise ending.

When teenage sisters go missing in the mysterious "Bennington Triangle" of Vermont, an area renowned for its disappearances and strange occurrences over the past 100 years, FBI agent Jack Juarez brings K-9 handler Jamie Flint and her dog Phantom in to assist with the search. When Jack realizes the case shares haunting similarities with the murders of the missing girls' aunts 10 years before, it becomes clear that he and Jamie are dealing with much more than two girls who simply wandered off the beaten path.

When a young girl is found dead in the mountains outside Timber Creek, lifelong resident Officer Mattie Cobb and her partner, K-9 police dog Robo, are assigned to the case that has rocked the small Colorado town. With the help of Cole Walker, a local veterinarian and single father, Mattie and Robo must track down the truth before it claims another victim. But the more Mattie investigates, the more she realizes how many secrets her town holds. And the key may be Cole's daughter, who knows more than she's saying.

There's a saying in Barstow, California, a decaying city in the scorching Mojave desert . . . The Interstate here only goes in one direction: Away. But it's the only place where ex-LAPD detective Beth McDade, after a staggering fall from grace, could get another badge . . . and a shot at redemption. Over a century ago, and just a few miles further into the bleak landscape, a desperate stranger ended up in Calico, a struggling mining town, also hoping for a second chance.

Thomas Austin was once a prominent NYPD detective, known for locking up a psychopathic serial killer dubbed "The Holiday Baby Butcher". Now retired in a small beach town in the Pacific Northwest, Austin runs a little café, trying to overcome the loss of his wife, a DA who was gunned down only one year ago.

D.I. Duncan McAdam is dispatched home to the Misty Isle. A body has been found buried in a remote location on the Waternish peninsula. Well-preserved in the peat, Isla Matheson—missing for the better part of two decades—is revealed to a shocked island community. A teenage runaway is dead...and no one is talking.

Detective Chief Inspector Harry Grimm is forced to take leave from Bristol’s Major Investigations Team when his boss, tired of Harry chasing the ghost of his murderous father, sends him north on secondment. Used to city life and high stress, Harry fears his life will now be spent handing out speeding tickets, finding lost sheep, and directing tourists. But when a local teenager runs away, Harry finds himself pulled into an investigation much worse than anyone could have ever expected.

The Dead Eyes killer lurks in the backyard of the FBI's famed Behavioral Analysis Unit. His brutal murders, unlike any others previously encountered, confound the local task force, despite the gifted skills of Special Agent Karen Vail, the first female ever promoted to the profiling unit. But along with her keen insight, Vail brings considerable personal and professional baggage—both of which threaten to derail the investigation, destroy her storied career and get her killed.

Tim Rackley, a deputy U.S. marshal, watches helplessly as his daughter's killer walks free on a legal technicality. He is suddenly forced to explore his own deadly options, a quest that leads him into the welcoming fold of "The Commission".

There's nothing strange about bodies buried in cemeteries - unless they don't belong there. And when six murdered women are discovered in other people's graves, the hunt for a sadistic serial killer begins before he can claim a seventh victim. Agent Cam Prescott of Iowa's Division of Criminal Investigation is leading the search alongside forensic psychologist Sophia Channing, who knows the minds of psychopaths inside and out. And after a brief but passionate affair, she knows Cam almost as well.

Meet FBI Agents Emma Monroe and Zack Armstrong. She's cursed. He's damned. Together, they make one hell of a team. Emma Monroe is a Siren, cursed by the gods and bound to earth to atone for an ancient failure. She’s had many names and many lives, but only one mission: redemption. Now that she works missing persons cases for the FBI, it could be just a rescue away. Unless her new partner leads her astray.

Ellery Hathaway knows a thing or two about serial killers, but not through her police training. She's an officer in sleepy Woodbury, Massachusetts, where a bicycle theft still makes the newspapers. No one there knows she was once victim number 17 in the grisly story of serial killer Francis Michael Coben. The only victim who lived. When three people disappear from her town in three years, all around her birthday - the day she was kidnapped so long ago - Ellery fears someone knows her secret. Someone very dangerous.

Five years after the brutal slaying of her husband, software technology executive Jill Shannon is finally ready to take the next step in her life. With her wedding to Phoenix Arizona prosecuting attorney Conner Manning just eight weeks away, the only cloud on Jill's horizon is her future father-in-law's political ambitions for his son. Jill has dark secrets in her past. Secrets she can't afford to have exposed under the relentless lights of a political campaign.

Redemption isn't a word Jim Heron knows much about - his specialty is revenge, and to him, sin is all relative. But everything changes when he becomes a fallen angel and is charged with saving the souls of seven people from the seven deadly sins. Vin diPietro long ago sold his soul to his business, and he's good with that - until fate intervenes in the form of a tough-talking Harley-riding, self-professed savior.

One shot. One kill. A simple plan. A simple operation. But it doesn't take much to throw off the assassination of a corrupt US senator in a foreign country. Not once the cartel gets involved. Can Riley "Bear" Logan and Jack Noble fight through the waves before a traitor gets to them first?

One cold November night when Kat Kominski was 15 years old, she and some friends held up a convenience store. In the heat of the moment, one of the others shot and killed an off-duty cop moonlighting as a security guard. Kat and her pals fled the scene in a panic, and no one was caught. Thirteen years later, Kat - now Kate White - has built a new life for herself. Now a single mom with a nine-year-old son, she works as a prosecutor in the Philadelphia DA's office. But her dark past returns to haunt her.

Not even death can save her now. As a grave witch, Alex Craft can speak to the dead---she's even on good terms with Death himself. As a consultant for the police, she's seen a lot of dark magic, but nothing has prepared her for her latest case.

Police Sergeant Lou Boldt heads a special task force within Seattle’s Homicide bureau. His job: find and stop the Cross Killer, a twisted, perverse serial murderer who has eluded police for six months and paralyzed the city. But when a body washes up on the shore of Puget Sound, Boldt thinks the killer has finally made a mistake. This body shows some of the work of the Cross Killer - but a job badly botched. Did this woman die while trying to escape? Did she knowingly jump in the water to preserve a clue? And is she now desperately trying to tell Boldt something?

Patrick Davis is a man with troubles. First his Hollywood dreams crumble, then his storybook marriage hits a snag. Finally, DVDs start being delivered to his house – DVDs which show that someone is watching him and his wife, that the two of them are being stalked and recorded by cameras hidden around and within their house. Then the e-mails start, and someone offers to fix everything, to take the mess his life has become and make it all right. Patrick figures it's the offer of a lifetime.

The title character from ABC's hit television series Castle kicks off his new series of books featuring tough and sexy New York police detective Nikki Heat with a bang.

Jamie Gabriel gets on his bike before dawn to deliver newspapers in his suburban Indianapolis neighborhood. He is 12 years old. Somewhere en route, he vanishes without a trace. Crushed by frustrating dead ends and exhausted by a police force that cannot (or will not) find their son, the Gabriels finally stumble upon a name - an elusive private investigator who may represent their last chance for answers.

Alex McKenna is the new Special Agent in Charge of the Chicago office of the Bureau of Preternatural Investigations - the division tasked with investigating crimes involving shades. Or vampires, as they're more widely known. Children have been going missing, and agents are routinely being slaughtered. It's up to McKenna, and some unlikely allies, to get to the bottom of the problem, and find the kids before it's too late.