Royce Blackstone has one rule: Never get personally involved with his clients. As the owner of Harper Security Ops, Royce is well aware of everything and everyone inside his building. When he’s about to go in after the biggest lead on latest case that’s landed on his desk, Royce didn’t expect he’d have to abort the mission early. It might have seemed like Tarryn Hendrix was simply looking to learn some new skills, but dedicating two years of her life to training her mind and body is all part of Tarryn’s plan.

Former Navy SEAL Logan Bishop was bored. He spent his post-SEAL days flying tourists on helicopter rides over the mountains of Montana and occasionally rescued skiers from snowy slopes when an injury resulted in early retirement.

Loner Boone Hendrix left the military with ghosts that haunt him. He lives with his dog Atlas on a farm in Vermont. Alone. Just the way he likes it. Until he rescues a half-drowned, beautiful brunette from his river. Gemma Newhouse is the daughter of the richest man in America, and from the abrasions on her wrists and her drugged state, she’s on the run from someone dangerous. She’s nothing like Boone expected—sweet, smart, and likes baking—and she ignites a fierce need inside him.

When carefree musician Elizabeth "Elle" Blackman discovers someone has been in her apartment just days before she's set to go on tour, she makes the only sensible choice there is. She runs right to the front door of Cunningham Security, where the owner is not only the man capable of keeping her safe, but also the guy she's crushed on for months.

In the Shadow World, he was the god of death, and he was called many names. The monsters he hunted called him Anubis. Those who saw his face died. To Guardian Security, he was a number - a surgical weapon they wielded against monstrous evil. One woman called him Kaeden Lang. Anubis never meant her to be anything except an interlude - a moment of light in the darkness of his life, a one-time escape from the ever-present haze of death.