Priska James is thirteen and has a surprising ability handed down to her by an archangel: she can hear the song of a person's soul. Even though she is supposed to be a champion for justice, she'd rather just be a kid, and she dreads the day her grandfather forces her to finally take a case. That day comes when she is asked to find a missing girl last seen in the company of a congressman at a Lake Tahoe casino. The clues lead to a ruthless fixer, and Priska finds herself alone and outmatched.