Literature Network: The Land that Time Forgot, Literature Network: The Lost Continent, OFCN Bookshelf: The Lost Continent, Out Of Time's Abyss, Page By Page Books: Out of Time's Abyss, Page By Page Books: The Land that Time Forgot, Page By Page Books: The Lost Continent, Page By Page Books: The People that Time Forgot, People Out Of Time, The Land That Time Forgot

Chessmen of Mars, The, Gods of Mars, The, Princess of Mars, A, Thuvia, Maid of Mars, Warlord of Mars, The, A Barsoom Glossory, Edgar Rice Burroughs - Barsoom series

Literature Network: The Monster Men, OFCN Bookshelf: The Monster Men, The Monster Men, The Monster Men, The Monster Men

At the Earth's Core, At the Earth's Core, OFCN Bookshelf: At The Earth's Core, Page By Page Books: At the Earth's Core, Pellucidar, Pellucidar

Beasts of Tarzan, The, Jungle Tales of Tarzan, Return of Tarzan, The, Son of Tarzan, The, Tarzan and the Jewels of Opar, Tarzan of the Apes, Aping the Ape-Man, Literature Network: Tarzan the Terrible, OFCN Bookshelf: Jungle Tales Of Tarzan, Tales of Tarzan, Ki-Gor, Sheena and Other Rivals, Tarzan and the Lost Empire, Tarzan of the Internet, Tarzan the Terrible, Tarzan the Untamed, Tarzan: The Lost Adventure