Written in collaboration in 1922 by the author of Felifax, this five-volume saga (of which this is the third), purporting to chronicle the early years of the 21st century, takes place in a quasi-utopia-like Earth, where, thanks to the genius of master scientist Oronius, humanity has mastered natural forces. However, Oronius' former colleague Otto Hentzen, a mad scientist who has allied himself with the beautiful, deadly Princess Yogha, has sworn revenge on the master scientist. He unleashes a worldwide cataclysmic radioactive heat wave that dries up most of the oceans and awakens the ancient continent of Atlantis. Unfortunately, it is a savage world of cannibal warriors and monsters, ruled by the cruel Queen Atlantea, the incarnation of all twelve Queens of Atlantis…