Can you save someone who doesn't know if she's alive?Breen lives locked away, separated from the world by the walls of her clock tower and the machine of gems, gears, and magic that replaces her heart. That is, until an unexpected visitor appears in her tower, offering a dangerous gift: freedom. His promises awaken hope for a life unbound by the tower walls - but she knows that if he learns about her heart, it's only a matter of time before he turns on her.Josiah is powerless. Though he's the crown prince of the mighty Chanian empire, he feels stifled by his inability to protect his people from the schemes of corrupt nobles. When he discovers a girl trapped in a locked clock tower, he thinks he's finally found a problem he can solve . . . but more than just walls keep her captive.From the royal palace to the streets of Rivenford to the tops of clock towers, secrets hide around every corner in this steampunk retelling of Rapunzel. Breen and Josiah hold the keys to each other's struggles - if they can break down the barriers that divide them.