This will be my last Andre Norton book; I am unable to endure these illogical, unscientific, nonsensical novels anymore. I read her book, Daybreak 2250 AD, as a preadolescent in the 1960s, and it was somewhat enjoyable, but I read it again as an adult, and it was horrendous. The confusing plot lines, shallow characters, glaring loopholes and non-science (where magic, voodoo, and sorcery are accepted as valid and real phenomena) may be easily accepted by juveniles, but adults will not be able to endure. Over the years I accumulated almost all of Andre Norton's books, and I read many of them, but I am going to stop; what good is it to read a book if it is a negative experience which evokes unhappiness, anger and frustration? I had thought that the "Andrew North" (her pseudonym) books would be different, but they are the same. In Voodoo Planet, two rivals, a medical doctor and a native witch doctor, fight it out using voodoo, drugs and hallucinations for reasons unknown. This book is not nearly as bad as Key out of Time and Huon of the Horn, both by Andre Norton - two of the worst books I have ever read - but it is enough to make me quit Andre Norton forever.