Two hearts, many worlds, one mission.

As Wynn St. Jyles searches for the fabled Amulet of Skia among the dangerous market stalls of the Alterrian Islands, memories of her last disastrous mission to the beta dimension haunt her steps. She's determined not to repeat the mistakes that left her with a broken heart and permanent ear damage, but this trip doesn't look much more promising.

Particularly when she's dragged into a dark room, robbed of her aural implant—and the face swimming in her vertigo-stricken vision is the lover who, five years ago, left her in a pool of her own blood.

Kade, an exiled prince of the realm, still carries the pain of the devastating choice that forced him to leave Wynn for dead. Now she's in his arms again, but the last thing she wants is him. She wants only what he's trying to protect—the amulet.

Forced to become cautious allies in a violent, inter-dimensional arms race, Wynn finds herself fighting just as hard against a rekindled desire for Kade—leaving her wondering how she can hope to control the key to the multi-dimensions when she can't even control her own heart.

Warning: Contains pulse-pounding action, vertigo-inducing plot twists, and a love that crosses dimensions.