My whole world changed when I stepped inside the academy. Nothing is right about this place or the other students in it. Here I am, a mere mortal among gods...or monsters. I still can't decide which of these warring factions I belong to, if I belong at all. I only know the one thing that unites them is their hatred of me. Then there's Jaxon Vega. A vampire with deadly secrets who hasn't felt anything for a hundred years.

They think I’m half angel and half human. They think I have no magic. They think that because I grew up in the human world, I’m clueless about what to expect at Seraphim Academy. They’re wrong. I’m not half human. I’m half demon. And this little succubus has come to play. My brother vanished from Seraphim Academy without a trace, and I’ll do whatever it takes to find him, including infiltrating the school myself. Even if it means going up against my brother’s best friends. They may be angel royalty, but if they think they can intimidate me into leaving, they’re wrong.

My father called them messengers. He once told me they walked among us and that somewhere in this dark and godless city, there shined a faint sliver of hope. I had only to look for the signs. Well, I’ve spent my whole life investigating the inexplicable and all I've found are the unsettling vestiges of iniquity—the evidence of another world shrouded by the obscure. Purgatory to some, where depravity hides in shadows, and girls like me are little more than delicious bites of temptation. Others call it Nightshade.

It once seemed so easy to Prince Rhen, the heir to Emberfall. Cursed by a powerful enchantress to repeat the autumn of his 18th year over and over, he knew he could be saved if a girl fell for him. But that was before he learned that at the end of each autumn, he would turn into a vicious beast hell-bent on destruction. That was before he destroyed his castle, his family, and every last shred of hope.

Princess Lira is siren royalty and the most lethal of them all. With the hearts of 17 princes in her collection, she is revered across the sea. Until a twist of fate forces her to kill one of her own. To punish her daughter, the Sea Queen transforms Lira into the one thing they loathe most - a human. Robbed of her song, Lira has until the winter solstice to deliver Prince Elian's heart to the Sea Queen and or remain a human forever.