In Relentless, New York Times bestselling author Cassia Leo continues this pulse-pounding coming of age saga with characteristically brilliant, heart-shattering dilemmas that promise a roller coaster of emotions.

It was a silly bet. She never imagined it would tear her carefully crafted world apart...

When surfer Adam Parker walks into Beachcombers Café, Claire think he's just another flirty customer. Until he nearly runs her over with his truck later that night, and she discovers he's none other than her new upstairs neighbor.

A relentless pursuit leads to a harmless date in Adam's new apartment, which leads to a bet that has the potential to implode her entire life.

The bet is simple: If Adam can get Claire to reveal the secret that made her drop out of college, she has to re-enroll. If he doesn't succeed, she gets to keep her secret, and he has to stop pursuing her at the café and at home.

Claire thinks she has this one in the bag. She's perfected the art of forgetting her past.

But she's not prepared for Adam to share his own secrets. And she's definitely not prepared for her ex, budding rock star Chris Knight, to come banging on her door with her secret—and his shattered heart—in his hands.