rule four SHOW UNMOOCHABLE + TITLE > TOPIC > PUBLISHER > ? RELATED SEARCHES > ADVANCED SEARCH > SHOW COVERS + Title Copies Ian Caldwell The Rule of Four 6 Ian Caldwell The Rule of Four 3 Ian Caldwell The Rule of Four 3 Dustin Thomason The Rule of Four 1 Ian Caldwell The Rule of Four 1 Joscelyn Godwin The Real Rule of Four 1 Ian Caldwell & Dustin Thomason The Rule of Four 1 Ian Caldwell & Dustin Thomason The Rule of Four 1 Search BookMooch for a book: SEARCH BOOKMOOCH > Search Amazon for a book: amazon.co.uk amazon.de amazon.es amazon.fr amazon.it amazon.cn SEARCH AMAZON >