K-9 officer Tarren McGregor never imagined that a cartel would find its way to Texas’s South Padre Island—or target his best friend’s sister. But when Julia Hamilton witnesses and prevents the kidnapping of a teen girl, Tarren knows that trouble is soon to follow. Because Julia didn’t just protect the girl—she saw the abductor’s face. Now she’s marked for murder, and it’s up to Tarren and his K-9 partner to keep Julia safe from the human traffickers in pursuit…even if it means putting themselves in the line of fire.

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.

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.

DEA Agent Doug Bridges is angry to realize his stepsister has been kidnapped after her night shift at the hospital. He goes into full agent mode to investigate, but soon runs into dead ends. Winter in northern Wyoming is no joke and he needs help, fast. When he’s referred to the Sullivan K-9 Search and Rescue team, he convinces Maya Sullivan and her Siberian Husky Zion to help him find Emily.

Years after being abducted, Mckenna Parker’s worst nightmare has come true—her kidnapper is out on parole. And he’s after her again. Now an FBI victim specialist, she and her crisis canine, Mocha, have been assigned to a case with FBI agent Evan Knox. Together they must find two local girls who disappeared. As passionate as Mckenna is about helping others, Evan is ambitious about his career. Both have sworn off love. But when Mckenna vanishes into the mountain wilderness, it’s Evan—with Mocha’s amazing help—who braves danger at all costs.

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.

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.

When her estranged uncle attempts to sabotage her family’s reindeer ranch, K-9 team assistant Katie Kapowski heads home to help save it—and becomes his target. With their rocky past, Alaska State Trooper Brayden Ford and his furry partner are the last team Katie wants assigned to protect her. But with the ranch under siege, they must work together…or risk falling victim to a killer.

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.

Someone's planting explosives on dams in the Twin Cities, and Bristol Bachmann and her bomb-sniffing dog must move quickly to find them before everything ends up underwater. That means relying on the dams' supervisor—an ex-boyfriend Bristol never thought she'd see again. An environmental terrorist wants the dams gone, and his bid to set the waters free has lethal consequences. When he sees Bristol and her K-9 working to stop him, he sets his sights on them. Can they evade him in a lethal game of cat and mouse and protect the cities from devastation before the clock runs out?

Three full length heart-racing thrillers that will keep you guessing to the very end. Experience the thrill of unexpected plot twists and irresistible chemistry.

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.

K-9 officer Tarren McGregor never imagined that a cartel would find its way to Texas’s South Padre Island—or target his best friend’s sister. But when Julia Hamilton witnesses and prevents the kidnapping of a teen girl, Tarren knows that trouble is soon to follow. Because Julia didn’t just protect the girl—she saw the abductor’s face. Now she’s marked for murder, and it’s up to Tarren and his K-9 partner to keep Julia safe from the human traffickers in pursuit…even if it means putting themselves in the line of fire.

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.

Rescuing a kidnapped child is part of the job for search-and-rescue K-9 handler Patrick Sanders—but this time it's his son. Now Patrick and his furry partner must work with his high school love, Jennie Wilcox, to shield the little boy he just learned about. In a hurricane's aftermath, Detective Erin Jeffries is stunned when she and her K-9, Alcee, uncover a collapsed building's only survivor—her long-ago ex, Cody Elbourne .When park ranger Autumn Mercer and her K-9 partner, Sherlock, meet a stranger in the mountains whose brother is injured, they drop everything to help.

When her estranged uncle attempts to sabotage her family’s reindeer ranch, K-9 team assistant Katie Kapowski heads home to help save it—and becomes his target. With their rocky past, Alaska State Trooper Brayden Ford and his furry partner are the last team Katie wants assigned to protect her. But with the ranch under siege, they must work together…or risk falling victim to a killer.

After her mother’s death during a bank robbery when she was a child, Gemma Capello grew up to become one of the NYPD’s elite hostage negotiators. In a family of cops, there’s rarely a day when a Capello isn’t facing down some form of threat. Still, despite their unpredictable schedules, they always find time for their annual family summer picnic. But this year, a sudden phone call changes everything.

Chief of police Tristan Church likes Marsville just the way it is. He has his job and his police dog, Fuzz, for company. He could have Sheriff Skylar Morgan, too, but she’s determined to keep him at arm’s length, even if the one night they shared was unforgettable. Skylar can’t deny that the connection she has with Tristan is unlike anything she’s ever felt before. She loves Marsville, but while most of the town is happy with her as Sheriff, it’s been a long, hard road proving herself.

After surviving a terrible attack, Quinn Fleming has recovered in every way but one—her ability to retain new memories. Now, months later, it appears to the outside world as if the San Diego florist’s life is back to normal. But Quinn is barely holding on, relying on a notebook she carries with her at all times, a record of her entire existence since the assault. So when she witnesses a murder in the shadowy alley behind the florist shop, Quinn immediately writes down every terrifying detail of the incident before her amnesia wipes it away.

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.

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.

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.

DEA Agent Doug Bridges is angry to realize his stepsister has been kidnapped after her night shift at the hospital. He goes into full agent mode to investigate, but soon runs into dead ends. Winter in northern Wyoming is no joke and he needs help, fast. When he’s referred to the Sullivan K-9 Search and Rescue team, he convinces Maya Sullivan and her Siberian Husky Zion to help him find Emily.

Wilderness expert and dog trainer Raine Stockton agrees to help lead a survival skills training camp for her fiancés executive team. She is unaware that she and her tracking dog, Cisco, are walking into a hotbed of corporate intrigue involving espionage and stolen technology. Everyone at the retreat is a suspect, and no one can be trusted. And none of them is aware that, while their small drama plays out, a much bigger threat is stalking them.

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.