Have you ever wondered about mythical and legendary worlds such as the lost continent of Atlantis? Have you ever heard of Mu and the Lemurians, who some say still exist among us? Respected researcher of unexplained phenomena, Jerome Clark, provides a comprehensive and trustworthy look at ancient mysteries, fictional fantasy lands, and extraterrestrial civilizations in his book, Hidden Realms, Lost Civilizations, and Beings from Other Worlds.

Claims of supernatural realms, parallel worlds, and legendary, lost civilizations are put to the test in this well-researched guide to the unexplained. Firsthand accounts and historical documents are explored, and in-depth coverage is provided on the mysteries of imagination, culture, perception, consciousness and more. Beliefs, doctrines, experiences, and places are described and explored in this truly comprehensive guide to the wacky, weird, and otherworldly, including: