9780060775599 | Regan Books, February 23, 2005, cover price $26.95 | About this edition: An analysis of the mystery surrounding Shakespeare's identity explores multiple theories, identifying inconsistencies within the Stratford-upon-Avon hypothesis while considering the less supported possibility of Shakespeare's nobility.

9780060834173 | Perennial, April 1, 2006, cover price $15.95 | About this edition: A modern analysis of the mystery surrounding Shakespeare's identity, written by the award-winning author of Royal Blood, explores multiple theories, identifying inconsistencies within the popular Stratford-upon-Avon hypothesis while considering the less-supported possibility of Shakepeare's nobility.

9780060392697 | Regan Books, October 1, 1998, cover price $25.00 | About this edition: A noted lawyer investigates the historical controversy surrounding King Richard III of England and the disappearence of his nephews from the Tower of London, examining Richard's vilified career and offering a surprising and history-changing theory.

9780060987381 | Reprint edition (Regan Books, July 1, 2000), cover price $16.00 | About this edition: A modern-day lawyer uses his investigative tools to solve one of the great mysteries of English history--the murders of King Richard III's nephews.

9780750925457 | Sutton Pub Ltd, June 1, 2000, cover price $10.01 | About this edition: Notoriously immortalized by Shakespeare and historians, Richard III is history's most infamous royal villain.