Sexually squicky story of a young niece moving in with her middle-aged uncle on Long Island after her parents die in an avalanche in the Andes. She once used LSD, which is basically the Devil's garage door opener for your soul, and now she's possessed and dosing other people with LSD. Featuring a terrible birthday party, bad trips, bad sex, and a kitchen table exorcism courtesy of the next door neighbor who proclaims, "I’ll exorcise her in the English way, and while I’ve never done one before I’ve SEEN quite a few." Needless to say, you want a licensed professional in these situations.
The author, Eth Natas, is a pseudonym--an anagram for "The Satan," no less--and some circles believe this book was actually written by Stephen King pre-"Carrie" fame. I have a hard time believing that this is his work. It's God-awful, and if he was responsible, there's good reason to deny it. Full review (with many spoilers) at my blog: My Bloody Obsession.
I found this on my bookshelf, apparently I got it used for $1. That's about all it was worth. Quick read but poorly written and the story was stupid but entertaining. Not that I didn't expect it, but that's why I love books like this.