Hello there have a collection of 6 hardcover publications club by PIERS ANTHONY done in great to really great state - all are BCCE editions. I have the following books
Publication 1- PROBLEM
Publication 2- TROLL OGRE
Book 3- DRAGON ON A PEDESTAL
Publication 4- GOLEM IN THE GEARS
Publication 5- VALE OF THE VOLE
Publication 6- THE MAGIC OF XANTH
If you have any sort of inquiries happy ask