Criminal Macabre: A Cal McDonald Mystery #5 (2003)

The mystery is solved, and the nefarious enemy has been identified, but still monsters are running rampant on the streets of Los Angeles. Now Cal McDonald has to find a way to stop them--but when you're a guy like Cal, what do you do when everything you have ever believed has been turned inside-out, upside-down, and sideways? First you assemble your only friends, who just happen to be ghouls...then you pack a lot of guns, buckets of holy water, and a prayer or two for good measure. It's Cal versus the monsters in an urban ghoul throwdown like you've never seen before--and it's going to get messy!