I Remember Lemuria and The Return of Sathanas

I Remember Lemuria and The Return of Sathanas are two books written by American writer and artist Richard S. Shaver. Both books are part of a series of science fiction stories that explore the idea of ancient civilizations and hidden underground societies. In I Remember Lemuria Shaver presents a theory that ancient civilizations existed on Earth long before recorded history and that these civilizations had advanced technology and knowledge that was lost over time. The book follows the adventures of a protagonist who claims to have lived in the lost civilization of Lemuria and who recounts his memories of the advanced society. In The Return of Sathanas Shaver continues the story of the lost civilization and explores the idea that a malevolent force is working to destroy humanity. The book features a number of strange and otherworldly creatures as well as a plot that involves a battle between good and evil. Both books were controversial at the time of their publication and were criticized for their fantastical and sometimes disturbing content. However they have since gained a cult following and have been influential in shaping the science fiction and fantasy genres.