My Bodyguard is a Hellhound

My rescue dog is secretly a hellhound. And apparently, we're soulmates, destined to be together forever.
When Caleb Caldara adopts the biggest, scariest dog at the Haven animal shelter, he's just trying to feel safe again after a brutal attack. He doesn't expect Charlie to be perfect—loyal, protective, and suspiciously intelligent. And he definitely doesn't expect to discover that a six-foot-three tattooed hottie has been masquerading as his dog.
Spike has been hiding his hellhound identity for three weeks, content to protect his adorable human with teeth, and claws, and all four paws while sleeping beside him in his hellhound form. But when Caleb's attackers return with backup, and Rex, the Haven alpha, spills his secret identity, staying in dog form is no longer an option. Now Caleb knows the truth: his perfect guard dog is actually a 200-year-old shapeshifter who's irrevocably soul-bonded to him.
And choosing Spike means choosing immortality, a supernatural pack family, and a love that will literally last forever.
But first, they have to survive the hunter organization that's targeting them.
The Sanctum Initiative believes supernatural beings are a threat that must be contained—and they're willing to use kidnapping, demon summoning, and all-out war to prove it. With Caleb in their crosshairs, Spike and the Haven pack must go on the offensive before it's too late.
The battle lines are drawn. The stakes couldn't be higher. And Caleb has to decide if he's brave enough to step into a world of hellhounds, magic, and danger.
Spoiler alert: he absolutely is.