Keepers of the Secrets gives a unique perspective of mystical societies throughout civilization. It summarizes the history and spiritual philisophy of the Shamans, Druids, Essenes, Gnostics, Hermetics, Kabbalists, Alchemists, Magicians, Witches, Sufis, Rosicrucians, and Free Masons. The book provides insight on how these societies have influenced the world through the centuries.

Robert Siblerud is co-founder and past director of the International Association for New Science (IANS). Over the past decade, IANS has sponsored numerous conferences and publications regarding new paradigm science. Dr. Siblerud is an author, environmental physiologist, and former optometrist.