9781405322072 | Gardners Books, October 25, 2007, cover price $35.85 |
About this edition: Showing you where the Bermuda Triangle is, whether alien abductions actually happen, and the truth about crop circles, this work lets you explore lost worlds, unravel secret codes, marvel at mysterious places and meet spooks, spies, secret keepers and scandal makers of the world.
9780756632052 | Box edition (Dk Pub, October 1, 2007), cover price $29.99 |
About this edition: Presents a collection of unusual facts, secrets, and unsolved mysteries from around the world, from Paris' hidden tunnels, to the mystery of the the Roswell crash site in New Mexico, and to secret documents contained in the Vatican library.
9780756662936 | Dk Pub, June 21, 2010, cover price $19.99
9781405356534 | Gardners Books, June 1, 2010, cover price $24.15