This YA punk fantasy from the early 1990s, is set in Bordertown, which is on the border between our world and Faerie. It's populated by elves, humans, and halfies. Ron, the human teenage protagonist in the previous book, Elsewhere, has been cursed by an annoyed elf and turned into Wolfboy, half wolf and half human. As if that's not enough, he also has to deal with a murder and a kidnapping.
Be sure to read Elsewhere before you start this book, or you will be lost. I had read this before, but I had forgotten the ending, which is rather complicated. Now I see I'll have to reread Emma Bull's Finder, which is about two of the supporting characters in this book, Tick-Tick and Orient.