Professor Challenger

Robin Edizioni

Il mondo perduto-La bolla velenosa. Le avventure del Professor Challenger (Vol. 1)

Independently published

Professor Challenger Complete Collection: The Lost World | The Poison Belt | The Land of Mist | The Disintegration Machine | When the World Screamed | Original Edition Annotated

Robin Edizioni

Il territorio delle nebbie-La macchina disintegratrice-Quando la Terra urlò. Le avventure del Professor Challenger (Vol. 2)

PROFESSOR CHALLENGER: THE ISLAND OF TERROR: A Sequel to Conan Doyle's The Lost World (English Edition)

EDGE Science Fiction and Fantasy Publishing

Professor Challenger: New Worlds, Lost Places (English Edition)

Wildside Press

The Professor Challenger Megapack: The Complete Series (English Edition)

PROFESSOR CHALLENGER: THE KEW GROWTHS AND OTHER STORIES: A Weird Science collection (English Edition)

Professor Challenger: The Serpent of the Loch (English Edition)

Books on Demand

Professor Challenger - Gesamtausgabe: Die vergessene Welt, Im Giftstrom, Das Nebelland, Als die Erde schrie, Die Desintegrationsmaschine (German Edition)

Book House

Professor Challenger: The Complete Collection (English Edition)