Murgo's Big Book of Trading is a book in Fable II which contains useful hints on earning gold through buying and selling commodities, taking advantages of sales and shortages, etc. The book was written by Mystical Murgo. It can be purchased from Fiction Burns in Bowerstone Market, or from various travelling traders. The book may also be found, along with an amethyst, buried in a dig spot under the Eastern side of the Bower Bridge in Bowerstone. This dig spot is one of the few that do not harbour random items; thus the book and the amethyst are always found there. The Box of Secrets store on Knothole Island will give you the Brodican Warrior Queen Outfit in return for two copies of this book.