Doubletake - Rob Thurman - Bog

If anyone knows that having family isn't always a good thing, it's half-human/ half-living nightmare Cal Leandros. But for once, it's not his relatives causing the trouble. That headache belongs to his half-brother, Niko. His ne'er-do-well father is in town. He needs a favour, and if Niko refuses, it just might doom the entire city.