This is a rare find. This is one of the original brown cover Dungeons and Dragons supplements. This one was printed in 1979 (th 12th printing). This offers additional rules for the Dungeons and Dragons game system, including more information on experience, an alternative combat system, and information on underworld and wilderness adventures.

The book shows cover wear, a few small stains on the front cover, edge/corner wear, rust on the staples, and misc marks. There is no handwriting or highlighting inside the book. The binding is tight. I will include an archival quality acid-free storage bag with backer board to help keep it looking nice.