"Page-turners filled with interplanetary perils and thrilling romance, these five epic adventure tales remapped the terrain of fantasy and science fiction." -- Page 4 of cover.

At the Earth’s Core reveals an entire world 500 miles below the surface of our planet. With dinosaurs, cavemen, and perpetual noon, the eerie world of Pellucidar is the perfect setting for this adventurous science fiction novel. David Innes is a wealthy miner who gave his friend, Perry Abner, the money to invent a powerful excavating vehicle. While the pair are carrying out a test run of the machine, they discover that it is incapable of turning...

Tarzan encounters a lost race with uncanny mental powers, after which he revisits the lost cities of Cathne and Athne, previously encountered in the earlier novel Tarzan and the City of Gold. As usual, he is backed up by Chief Muviro and his faithful Waziri warriors.

Elias Henders is the prosperous owner of a ranch and a gold mine. Competing for his daughter Diana, ranch hand Colby sabotages recovering alcoholic foreman Bull, and takes his job. The local stage is repeatedly robbed of gold bullion from the owner's mine, and Bull is suspected. The cowardly sheriff does not take action on the robberies. Rich Easterner Wainwright tries to buy the mine and ranch for a low price, but Henders refuses the offer and discusses...

The story reveals the fate of Wilhelm von Horst, the lost member of the previous book's outer world expedition to Pellucidar, which had been led by Jason Gridley and Tarzan to rescue Pellucidarian emperor David Innes from the Korsars. The action begins by recapping the incident in which Gridley, von Horst, and Tarzan's Waziri warriors, led by Muviro, are caught up in and separated by a horde of sabre-toothed tigers' cooperative hunt. Now on his own,...

Held captive by grotesque bodiless heads, Princess Tara of Helium was rescued by a warrior who dared not reveal his name. But escape led the daughter of the Warlord of Mars into even more loathesome peril - as the prize in a bloody game of living chess.

Former Earthman Ulysses Paxton served Barsoom's greatest scientist, until his master's ghoulish trade in living bodies drove him to rebellion. Then, to save the body of the woman he loved, he had to attack mighty Phundahl and its evil, beautiful ruler.

An amnesiac Tarzan and his monkey companion Nkima are taken by an African warrior to be his guardian spirits, and as such come into conflict with the murderous secret society of the Leopard Men, led by Gato Mgungu. From America, a young woman arrives in the territory in search of a loved one presumed missing, and two young men (also from that country) come in search of ivory.

Tarzan, his monkey friend Nkima, and Chief Muviro and his faithful Waziri warriors prevent Soviet communists from looting the lost city of Opar. The story also prominently features Tarzan's lion ally Jad-bal-ja.

Alice discovers an unknown land on the other side of the mirror and finds herself part of a problem in chess, meeting some unlikely characters of nursery rhyme and puzzled by the reversal of many of the laws of nature. The follow-up to Alice in Wonderland, originally appeared in 1871 and has not been out of print since. Curious Alice finds her way through a mirror into an amazing alternate world that is, in some ways, a reverse version of our own....