Last Breath (The Vampire Defense Agency Book 5) Katherine Diane

It’s been two months since the body of the Dark Prince vanished in the clawed grip of a demon lord. With no further sign of trouble, the Hush is back to business as usual. And Syren, heir to the vampire throne, is up to her old tricks—or so it seems.

When Kyr and Ronan track her down at a nightclub, Ronan isn’t surprised to see the spoiled princess backsliding into her party-girl ways, but he is surprised (and not happy) to get tasked with babysitting her. Syren isn’t happy either—because she has a reason to be spending her nights in the clubs … and it’s not to party.

But Syren isn’t the only one with secrets. Ronan is desperate to keep a lock on his. Because the weird crap that starts happening to his mind as his treatments begin to fail? Even a tough-as-hell male like Ronan can’t quite face that. At least … not alone.