True tales (or so it was claimed) of subterranean journeys * King Herla in the cavern of the dwarfs * Enkidu and his descent into Sheol * Orpheus and Aeneas in Hades * Sir Owen in Purgatory * Cuchulain in Tir-nan-Og * Reuben and the mikvah stairway * Reverend Kirk and his abduction * Richard Shaver and the Deros * Saint-Yves d’Alveydre in Agharta * Thomas the Rhymer in Fairyland * Olaf Jansen and the polar opening * Apollonius of Tyana in the Abode of the Wise Men * Lobsang Rampa beneath the Himalayas * Doreal and the mysteries of Mount Shasta * Guy Ballard and the Ascended Masters * Captain Seaborn and his voyage to Symzonia * Walter Siegmeister and the Atlantean tunnels * Dianne Robbins and the Library of Porthologos And other visitors to the hidden depths of the earth.