From her small Quantico office, Special Agent Maggie O'Dell has profiled serial killers using Polaroids, faxed copies, and scraps of evidence provided by homicide detectives from across the country. She's gained a reputation for successfully profiling killers and solving crimes, without ever stepping foot at a real crime scene. Then comes Albert Stucky, and nothing will ever be the same.

They dubbed him the Collector, so named for his ritual of collecting victims before disposing of them in the most heinous ways possible. FBI Special Agent Maggie O'Dell spent two years tracking him down, caught in a game of cat and mouse that left her forever marked by this killer.

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.

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.

Caitlyn Reed and her dog, Renegade, are thrown into the midst of murder and intrigue when they discover a dead body while on a trail ride in the black hills of Wyoming. The local sheriff is hell-bent on a conviction, and Caitlyn’s brother, Dylan, is in his crosshairs. Desperate to prove his innocence, Caitlyn turns to Deputy Colt Branson for help, but she must grapple with their rocky romantic past to gain his aid. As Caitlyn and Renegade pursue the killer, the investigation catapults their lives in a dangerous new direction.

While hiking in the foothills of the Rocky Mountains, FBI Special Agent Kendra Dean and her K9 partner, Baxter, stumble upon a dead body stashed in the woods. The discovery changes both of their lives forever. Special Agent Rick Sanchez hunts a serial murderer who is targeting women on a multi-state killing spree. Kendra Dean, an agent Rick met on a joint mission six months ago, has found the most recent victim. Rick and Kendra once shared a tempting chemistry but time and miles made their spark a distant memory.

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.

Dive into the world of Maddie Castle, a retired K9 handler turned private investigator, in this heart-pounding collection of the first three novels in the bestselling series. From gripping mysteries to life-threatening pursuits, Maddie and her canine partners battle danger, corruption, and their own pasts to bring justice to those who need it most.

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.

As a native of the small town of Hansonville, North Carolina,and a wilderness rescue worker, Raine Stockton knows the Smoky Mountains as well as anyone could, but she gave up her Search and Rescue work after a tragic loss. Now she reluctantly returns to active duty to help find a young child who has been kidnapped and taken deep into the forest.

Former Hanover County Sheriff Buck Lawson leaves the mountains of North Carolina to take a job as the police chief of the small South Georgia town of Mercy, and soon finds himself in over his head. For one thing, his predecessor has been murdered...Buck has inherited an unsolved homicide, a house that may well be haunted, and a police department that is almost certainly corrupt. It falls to Buck to free an innocent man and bring the former police chief’s killer to justice while wading through the quagmire of incompetence and dishonesty that permeates his office.

On his thirty-sixth birthday, Travis Cornell hikes into the foothills of the Santa Ana Mountains. But his path is soon blocked by a bedraggled Golden Retriever who will let him go no further into the dark woods. That morning, Travis had been desperate to find some happiness in his lonely, seemingly cursed life. What he finds is a dog of alarming intelligence that soon leads him into a relentless storm of mankind’s darkest creation....

Thirty years ago, Wilde was found as a boy living feral in the woods, with no memory of his past. Now an adult, he still doesn't know where he comes from, and another child has gone missing. No one seems to take Naomi Pine's disappearance seriously, not even her father - with one exception. Hester Crimstein, a television criminal attorney, knows through her grandson that Naomi was relentlessly bullied at school. Hester asks Wilde - with whom she shares a tragic connection - to use his unique skills to help find Naomi.

It should have been a routine investigation. Instead, DEA K-9 agent Adam "Deck" Decker watches in horror as one Denver hospital seems to be ground zero for overdoses of a new drug. Now Deck can only hope a certain ER doctor will help him and his canine partner track down the source. Dr. Tori Sampson has her reasons for not trusting federal agents, especially ones working for the DEA. But the rash of overdoses—including a heartbreaking case involving a teen—is alarmingly high. And the new opioid is not only extremely dangerous, it defies all the usual medical treatments.

Veronica Kildare cannot believe her luck–being shot at, again, by the bad guys. The sound, the feel of the bullet, and the hatred resonate for more than just the transitory moment of impact. She has relocated to a new state, but brutality has rampaged into this life as well.

Melanie Starks has never lived life by the rules. She and her 17-year-old son, Charlie, have been running one con job or another for as long as she can remember, justifying the petty crimes as the necessary survival moves of a single mother. But Melanie is ready to give it up.

From her small Quantico office, Special Agent Maggie O'Dell has profiled serial killers using Polaroids, faxed copies, and scraps of evidence provided by homicide detectives from across the country. She's gained a reputation for successfully profiling killers and solving crimes, without ever stepping foot at a real crime scene. Then comes Albert Stucky, and nothing will ever be the same.

Reed Montgomery would give anything to stop killing. A series of bad choices have led him into a life as an indentured assassin, where his bosses call the shots and he takes them—or else. Only the promise of eventual emancipation keeps him going, but in the criminal underworld, nothing is cheap. With one last kill standing between himself and freedom, Reed becomes involved with Banks, a young singer in the city. Suddenly, nothing is simple. Completing the kill will cost him everything with her, but Reed's bosses aren't interested in love, and they don't tolerate failure.

After years of working the streets of Miami, veteran detective Jon Marzett craves a quieter life. Taking a job as sheriff in the sleepy town of Big Pine Key seems like the perfect place to wind down his career. But the town harbors dark secrets, and corruption festers deep below the surface of what seems like paradise. Jon soon finds himself thrust into a battle against a powerful cartel determined to maintain its grip on his new hometown.

Officer Luz is lucky she still has a job after tasering a male colleague where it counts the most. Sure, he had it coming - which is why the police chief is giving Megan a second chance. The catch? Her new partner can't carry a gun, can't drive a cruiser, and can't recite the Miranda Rights. Because her new partner is a big furry police dog. So that's what the chief meant when he called Megan's partner a real bitch...With Brigit out on the beat, Megan is writing up enough tickets to wallpaper the whole station.

They dubbed him the Collector, so named for his ritual of collecting victims before disposing of them in the most heinous ways possible. FBI Special Agent Maggie O'Dell spent two years tracking him down, caught in a game of cat and mouse that left her forever marked by this killer.

Lucy Champagne was sent to St. Cecilia’s after her movie-star mother was brutally attacked by her sleazy boyfriend, Ray Watkins. Lucy’s damning testimony landed Ray a 25-year sentence. But now, Ray is free. And he’s going to find Lucy and make her pay, no matter how far and how fast she runs....

After escaping her abusive foster parents 13 years ago, Hailey Donovan thought her nightmare was over. Gatlinburg, Tennessee, had been a safe place to live—until she's nearly hit by gunfire while hiking the Smoky Mountains. Her instincts are to avoid law enforcement, especially handsome park ranger Rock Wilson, but when more gunfire echoes around them, they're forced to work together to escape. More attempts against Hailey convinces her to leave the city to start over someplace new.

Warning: The next terrorist attack on American soil is coming...sooner than you think. They can strike anytime, anywhere. A public landmark. A suburban shopping mall. And now, the human body itself. Three Middle Eastern terrorists have been injected with a biological weapon, human time bombs unleashed on American soil. They are prepared to die. To spread their disease. To annihilate millions. If America hopes to fight this enemy from within, we need a new kind of weapon. Meet Special Agent Jericho Quinn. Air Force veteran. Champion boxer. Trained assassin.

Laurel Snow wouldn't call hunting a serial killer a vacation, but with a pile of dead bodies unearthed near her Genesis Valley, Washington, hometown, she'll take what she can get. Yet something about this case stirs her in unexpected ways. Like the startling connection she feels to Dr. Abigail Caine, a fiercely intelligent witness with a disturbing knack for making Laurel feel like she has something on her. Then there's Laurel's attraction to Huck Rivers, the fish and wildlife officer guiding her to the crime scene - and into the wilderness....