K-9 officer Jackson Locke’s sister has vanished—and the key to finding her lies with Amy Scout…his sister’s best friend and his old crush. But when Amy comes under attack, two things become clear: Jackson’s sister has been investigating cold cases and someone wants Amy dead. Now he must untangle the mystery between the cold cases and his sister’s disappearance while guarding Amy from an enemy willing to kill to hide the truth…

When Lacey Gibson’s daughter disappears, she’ll do anything to find her—even track down a man she hasn’t seen in sixteen years. U.S. Marshall Mason Stone had no idea he was a father, but when he discovers his daughter is missing, the news shakes his carefully controlled world. In a race against the clock, can Lacey and Mason work together to find their child… before danger finds them?

The wounds on Jason Gonzalez’s body are nothing compared to the ones on his heart. The former Marine avoids getting close to anyone new, especially his gorgeous next-door neighbor. Until he hears a scream coming from her house in the middle of the night.

Racing into a burning cabin to search for survivors, firefighter Diana Cameron stumbles upon an unconscious child—and two bodies with bullet wounds. When a sniper targets their narrow escape, Diana has no choice but to team up with bodyguard Chase Mitchell to keep the little girl safe. Uncovering the identity of the murder victims is the only way to find the killer. But as they’re chased by gunmen into the mountain wilderness, can they protect a tiny witness from the unknown…when the truth is more sinister than they imagined?

Meet Jack, a tracker with a past he’s trying to escape. The first epic book of the Minnesota Kingston series by USA Today bestselling author Susan May Warren. Her secret blew apart his life—and now she needs his help? If only he could say no… Ten years should be long enough for Jack to forget the girl-next-door, his kid sister’s bestie and the woman—no, girl—who derailed his life. Now, he sort of likes his loner world as a missing person’s tracker. Well, mostly. But of course, when he returns home for his sister’s wedding, there she is… Nope, not forgotten at all.

Once known among New York's elite as the American Adonis, Everett Griffin now lives as a recluse in the wilds of Texas. The treachery of a former admirer left his face and his spirit riddled with scars, so he hides himself away, his only companions a trio of trusted servants and an oversized dog. Locals whisper of the beastly man who lives in the gloomy manor outside of town and his tendency to attack anyone who dares approach. Everett relishes his fearsome reputation and uses it as a shield to guard his privacy.

When patrol officer Trisha McCord's six-month-old son is nearly abducted, K-9 officer West Cole saves him just in time. The single mom has no leads on who would try to take her baby—or why. And West won’t let her deal with the threat on her own, especially with the kidnapper closing in and attacks escalating. With her child’s life at stake, Trisha, West and his K-9, Peanut, must race to catch a ruthless criminal in time to save innocent lives—including their own.

Detective James Holton has been honorably discharged from the Army Criminal Investigation Division due to wounds sustained when an IED blew up near him. Now with the Lake City Police Department, he's rooming with his good buddy and partner, Cole, while he figures out his family dynamics. Physician Assistant Lainie Jackson is eighteen months out from an attempted murder perpetrated by her ex, which ended when she managed to grab the weapon and shoot him. When he appears to have survived and is back to finish the job he started, Lainie insists it's not possible.

Former Special Forces Operative Bradyn Hunt may have traded a battlefield for his family ranch in Texas, but that doesn’t mean he stopped fighting. As the founder of Hunt Brother's Search and Rescue, he and his team take on missing persons cases that no one else can solve. They’ve retrieved people from the very depths of hell-on-earth, which has left him with his fair share of scars.

When Harper Crane is nearly abducted outside the law office where she works as an administrative assistant, she’s grateful two police officers are there to rescue her. At seven months pregnant she has no idea why someone is coming after her, especially since her criminal ex-husband is dead. She wants nothing more than to return to her boring life, but the attacks against her escalate, giving her little choice but to accept Steele’s protection.

As the CEO of a successful technology firm, Nia Anderson routinely makes split-second decisions. Now, every choice she makes could lead to life in prison or her own untimely death. She knows freedom lies in finding the real killer, but the evidence is stacked against her. Just when Nia thinks things can't get any worse, everything spins even more out of control.

When Mia Blackburn returns to Shadow Lake to inherit her uncle’s property, she doesn’t expect a threatening warning before she even reaches the rustic resort. And when a fire traps her in the burning barn that very day, she fears she won’t get out alive. Just in time, Ryan Maddox, her ex-boyfriend and Shadow Lake Survival owner, rescues her from the deadly blaze. She’s thankful for his rescue, but after their tumultuous breakup, he’s the last person she wants to see.

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.

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.

This collection includes Survival, Hunted, and Frequency. Survival: When one of the men in charge of storing food for the town of Shadow Ridge is found murdered execution style, it's up to Jace McQuaid to find the killer. Hunted: Levi McQuaid searches for the sister of an old friend, Ava Solomon, but the situation takes a deadly turn when the search leads them on a dangerous trek across the west Texas desert. Frequency: Four deaths, likely tied to arsenic-tainted water, leave the town of Shadow Ridge frantic for answers. But that isn't the only nightmare Tess McQuaid is facing.