To Kill a Warlock

Dulcie O'Neil is a fairy. And not the type to frolic in gardens. She's a Regulator-a law-enforcement agent who monitors the creatures of the Netherworld to keep them from wreaking havoc in the mortal world. When a warlock is murdered and Dulcie was the last person to see him alive, she must uncover the truth before she's either deported back to the Netherworld, or she becomes the next victim.