Probably not the worst I ever read, but whenever a question such as this comes up my mind immediately goes to one of the Tarot books by Piers Anthony. I don’t remember which one, it was just in a pile of books people left in a dorm one time and I had nothing to read. I finished it, but I can’t tell you anything about it other than the vague recollection that I hated it.

I will also say it’s hard to choose. I suppose it really depends on my mood or feelings at the time. However that being said, Pod People is the most memorable to me, followed extremely closely by Cavé Dwellers.