One of the most popular and influential science fiction tales of all time, The Land That Time Forgot was first published in book form in 1924. Set on the lost island of Caspak in the South Pacific, this novel is a dazzling blend of imagination, daring adventure, and intriguing scientific speculation. Hidden behind towering, impassable cliffs, Caspak will not easily give up its secrets. Unique and terrible animals and peoples inhabit the island. Dinosaurs terrorize tropical jungles to the south, while menacing winged humanoids dwell in cities on a large island in the north. Caught between...

Five hundred miles beneath the earth's surface lies a fantastic, timeless world of eternal daylight, prehistoric beasts, and primeval peoples-Pellucidar. Pellucidar is a world within our world, a place where the horizon curves upward and merges with the sky. Here time stands still, for Pellucidar is illuminated by a miniature sun that never sets but hovers motionless in the sky. Scattered throughout the savage, prehistoric wilderness are communities of distrustful humans and the cities of the reptilian, highly evolved Mahars. David Innes and Abner Perry break through into this mysterious...

In this sequel to At the Earth's Core, return to the world of Pellucidar-an exotic, savage land at the center of the Earth, an untamed wilderness where the sun never sets. When American explorer David Innes first discovered Pellucidar, he fell under the spell of the strange world, earning the respect of many, the undying hatred of a few, and the love of the beautiful Dian. Torn from her arms by trickery, Innes vows revenge and returns to the Inner World to seek his lost love. Innes breaks through the earth's outer crust, far from his beloved, and is forced to cross a fierce, unyielding world...

Lost Space adventurer Carson Napier made a grievous miscalculation and became stranded on dangerous, mist-shrouded Venus. But Napier refused to quit. He won the love of the beautiful Duare, princess of Vepaja, became a pirate, fought villains, then lost his beloved to the evil Thorist kidnappers. Napier's adventures on Venus continue in this pulse-pounding sequel to Pirates of Venus. Here the intrepid and wry explorer takes on a savage world in order to rescue the princess from her sworn enemies. Napier's epic quest for Duare takes him through the streets of the City of the Dead, into the...