Running away from home at 17 wasn't easy. Let's face it, though, nothing before or in the ten years since has ever been easy for me. And I'm doing okay—sorta. I just need to keep scraping by, living under the radar. Staying out of people's way, off people's minds. When a man walks through my open patio door, stepping boldly into my home and my life, I should be scared, frightened, terrified. I must be more broken than I realized because I'm none of those things. I'm intrigued—and I'm wondering if the way to take control of my life is by giving in to him.

Isolde de Lara considers her wedding day to be her death day. To end a years-long war, she is to marry vampire king Adrian Aleksandr Vasiliev, and kill him. But her assassination attempt is thwarted, and Adrian threatens that if Isolde tries to kill him again, he will raise her as the undead. Faced with the possibility of becoming the thing she hates most, Isolde seeks other ways to defy him and survive the brutal vampire court.

Ryker Voss. Football star. Walks on water and God's gift to women. Just ask him. He promises Penelope Graham, lover of sparkly vampires and calculus, he’ll win her the heart of the guy she’s been crushing on. His plan - good old-fashioned jealousy. Once her crush sees her kissing Ryker, he'll realize what he's missing. Penelope knows she shouldn’t trust a cocky jock, but what’s a girl to do when she needs help getting a date? And Ryker’s keeping a secret, another bet, one that will destroy Penelope’s heart forever.

One of the many engineers that keep Beta, the city under the sea, running, Mira only wants to make her family proud and to prove herself worthy. She knows the mysterious city better than anyone and it's her dream to help it flourish. Then, on a solo job in an abandoned section of the city, she encounters a monster of legend: an undine, a dangerous merman from an ancient civilization, long forgotten.

Poppy is nothing special. She was making ends meet and trying to enjoy life. But a strange necklace caught her eye at the thrift store. Now, three gorgeous men have stumbled into her life, and she's torn between being terrified and excited. That is, until they tell her she is the future queen of the Underworld. Not only that, but she needs to bond with her hellhounds - the three heads of Cerberus - and protect the Underworld from a goddess who wants it for herself.