Callie Delgado volunteered to become the student of the Gem City Soul Whisperer. He forced magical abilities into her, but now this magic belongs to her. She will learn to control her body's reaction to rented souls or burn out at work. Literally. She traded her chance to escape the dark side of Gem City for saving her brother. Now she needs to keep him sober and protect him, try to mend family ties and avoid the mafiosi who are too interested in the magic of soul renting. But when corpses begin to appear on the doorstep of the Soul Whisperer, it is up to Callie and her partner Derek to track down the one who is killing the soul renters. The Whisperer seeks revenge, but Callie is determined to enact justice, even if it means she ends up in the killer's crosshairs. If Callie is to remain in the Soul Whisperer's good graces, she'll have to face her enemies and learn to command rebellious souls...and hope, so that one of her loved ones does not become the next victim.