1st Edition Advanced Dungeons and Dragons, Fiend Folio By TSR theGame Wizards. This book is copyrighted 1981. This book is in great shape for an almost 34 year old used vintage AD&D rules book. There are 128 pages. This book lists new (1981) monsters for use in the game.Condition: Book is used and in Very Good condition. The front cover has some minor dings on the upper right quadrant (See Photo). Inside front cover has some minor abrasions in the middle which may be caused from removal of a sticker or bookplate. Interior pages are in very good shape, I found no tears or holes, I did not note any marks and all text is clearly readable.