How much trouble can a bunch of teenagers get into, being left alone in Los Angeles for an extended period of time? Turns out, exactly as much as you'd expect.
All the adults in the Bat family have gone to South America to make a movie. They've left Cherokee and Witch Baby home alone, but they can check in with Coyote if they need something.
The kids start a band (the Goat Guys of the title) and are given a boost by the special gifts Cherokee makes with help from their mystical sage guardian Coyote. The wings, pants, horns and boots hold special magic that may be more than they'd bargained on. Also, kids alone always discover sex.
This is the third book in the Dangerous Angels series, and it's maybe the one I've loved best yet. While there's a strong magical realism, it's not a stretch to see the cautionary message applicable to the real world, and even now more than 20 years after the book was written.