The Art of Shadows (The Marradith Ryder Series Book 2) - Dead ShapeShifters. A missing warlock. And a demon with an ancestral grudge.
Marradith Ryder's job as a Sojourner means she is tasked with finding threats of the paranormal sort, and stopping them before they cause havoc. Even with Justin and Fiona to help her, things get complicated fast. And as they face one danger, a new one presents itself, threatening Marradith and those she loves.
This is the second book in The Marradith Ryder Series, which began with Hunting in Closed Spaces. The series also includes two novellas: The Moon Goddess and Marradith, Darkly.