Includes 29 stories with 73 Illustrations. - Hollow Earth Tales Complete (Seven Volumes in One) is a compilation of the seven-volume paperback anthology produced by Nighttime Editions. Plus, one extra story, ‘Formula from The Underworld’, not found in its paperback counterpart. – This complete anthology focuses on hollow earth and subterranean fiction published between 1910’s and 1950’s where many fascinating stories are easy to miss among so much mass-produced literature in the American pulp era magazines. In them you’ll find all sort of speculations of hollow and cavern worlds, in the fast and entertaining style of the pulps. Included: – The Plunge of the “Knupfen” by Leonard Grover. – The Smoky God by Willis George Emerson. – The Annihilator Comes by Ed Earl Repp. – The Strange Voyage of Dr. Penwing by Richard O. Lewis. – The Hollow Planet by Don Wilcox. – The Voice from the Inner World by A. Hyatt Verill. – The Underground City by Bertrand L. Shurtleff. – A Subterranean Adventure by George Paul Bauer. – The Eye of Balamok by Victor Rousseau. – Death Dives Deep by Paul Ernst. – The Incredible Theory of Dr. Penwing by Richard O. Lewis. – The Hidden World by Edmond Hamilton. – The Inner World by A. Hyatt Verrill. – Enchantress of Lemuria by Stanton A. Coblentz. – Luvium by A. R. McKenzie. – Luvium, Under the Sand by A. R. McKenzie. – Luvium, The Invincible City by A. R. McKenzie. – The Far Detour by Arthur J. Burks. – The Valley of Titans by L. A. Eshbach. – The Troglodytes by Fred M. Barclay. – The Tomb of Time by Richard Tooker. – The Land of the Changing Sun by William N. Harben. – The Menace from Below by Harl Vincent. – The Return to Subterrania by Harl Vincent. – World of the Living Death by Ed. Earl Repp. – Phosphor, An Ischian Mystery by John Filmore Sherry. – The Inner Domain by Phil Collas. – Formula from The Underworld by Richard S. Shaver. – Two Thousand Miles Below by Charles Willard Diffin. *****