Secrets of the Alchemists (Mysteries of the Unknown) By Constable, George (EDT) Books / Hardcover Books › Science › General ISBN: 0809465000 / Publisher: Time Life Education, March 1991 Price Starting at $8.78 Free Shipping Send to a friend Add to Wishlist Below is a list of products arranged by condition. Select the quantity of the product you desire and click the "Add" button. Used - Very Good Very Good condition. (Alchemy) $14.62 1 in Stock at Warehouse Quantity Add Used - Very Good Very Good condition. A copy that may have a few cosmetic defects. May also contain a few markings such as an owner’s name, short gifter’s inscription or light stamp. $8.78 1 in Stock at Warehouse Quantity Add Used - Good Good condition. (Alchemy) $14.62 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store. Reviews Goodreads reviews for Secrets of the Alchemists (Mysteries of the Unknown)