- Lost Continents & the Hollow Earth
- The Hidden World No. 1 : The Dero! The Tero! The Battle Between Good and Evil Underground - The True Story Of The Shaver & Inner Earth Mysteries
- I Remember Lemuria, and the Return of Sathanas
- The Shaver Mystery, Book One
- The Hidden World Number 9: The True Story of the Shaver & Inner Earth Mysteries