The Blood Demon’s Collar by KD Ellis

When his boy is taken from him, Leviathan will do anything to get him back…even if it means burning down the world.

Trapped in an inescapable prison—Leviathan should know, he designed it himself—he only has one chance for freedom. And with his bonded taken by his ex-boyfriend, the sadistic Puck, there’s no time to waste. But Puck’s plan is bigger than just revenge, and there’s more at stake than Leviathan realizes. Saving his boy might mean dooming the world.
Eryn watched Leviathan—his Master, his Daddy—get stabbed in the back by a stranger, and there was nothing he could do to help. Taken by the old wix and with his life on the line, he has no choice but to find a way to escape on his own. But what is he supposed to do when he escapes one danger by running right into the arms of another?
Aries doesn’t want to keep his best friend locked up, and he definitely doesn’t want to see anything happen to his best friend’s bonded, but as a federal agent, he has to do what he can to keep the peace—especially once he learns of an upcoming threat more dangerous than anyone is prepared for.
Contains mature themes.