Necromancers Don’t Raise by Juliann Whicker

One mystery, one romance, and a possibly undead rat.
In the heart of Singsong City, Cassandra Clarence, recently departed, finds refuge in the Necromancer, Oswald Mercury’s, enchanted mansion. But when it comes out that she was murdered, along with her friends, she is drawn back into the world of the living. With the help of an unlikely ally, she must unravel the mysteries of her own death before they consume her chance at having a new life. Will she find her killer and maybe love, or will the shadows of her parent’s past drag her back into the grave?