Other Where Muddy Waters book by Sara O. Thompson
Determined to learn who set her up for the fall, help solve the FBI crimes and maybe get closer to her mysterious dark elf partner, tessa is more than willing to play witchy Nancy Drew. Tessa has few friends left and something is coming for her too - maybe it's the one who framed her and killed her coven, or perhaps a we for with a taste for witch's blood. Solving crimes doing magic, drinking bourbon. It's dirty work but somebody has to do it.