Deep in the middle of nowhere Australia, there's this isolated spot called Blackwood Academy. It's supposed to be this neutral safe zone keeping the peace between the fancy Vampire Nobility and the powerful Witch Covens.Kira looks like the ultimate badass guardian—always armed, super disciplined, ready to protect the vampire royals with her life. But that's just the cover. She's actually a witch sleeper agent sent by her coven to take them all out from the inside.Her plan was running smooth... until the night of the annual Blood Rite. A surprise attack goes down, Kira jumps in to save the crown prince, and her own blood spills. That scent in the dry desert air triggers something ancient—a twin-tether bond that snaps into place, linking her to two of the most dangerous guys at the academy.Lachlan: the intense, brooding crown prince who's all about duty and protecting his family's legacy. His pull on her is strong enough to break through every wall she's built.Jace: his wild, rule-breaking younger brother who's obsessed with getting under Kira's skin and already smells that she's hiding something big.Now Kira's stuck in this messy tug-of-war with these two royal vampire brothers who are ready to burn everything down to claim her. The tether is no joke—if one of them dies, she dies too. But her coven just dropped a seven-day deadline: kill the princes or else.She's supposed to assassinate the monsters she's now magically bound to... but the forbidden tension and desire are getting harder to ignore. Can she go through with it, or will the darkness pull them all under?