Furio Almirante arrives in port of Bengo, Angola in Africa to foil the plot of Henry Foster, a shady arms trafficker in the service of the "Black Leopard" a tribal chief who is preparing a revolt against the white settlers and in a first meeting with Foster and his aide Martin, Furio gives them a good lesson.
The scientist, his daughter and the young Claudio Reni are in Himalaya to reach the summit of Everest, but their expedition is soon hampered by the mysterious aircraft equipped with advanced weapons from an unknown city whose leader aspires to conquer the planet. The closing of the weekly at the thirteenth issue abruptly interrupts the series, which remains incomplete.
Long science fiction story written by Gian Luigi Bonelli with a troubled editorial history, see I Conquistatori dello Spazio for more info.
First table appeared on Audace N. 338 on a backcover and in color. It comes out for 41 issues in color, up to N. 378, before it is moved inside and in b/w for another 6 tables, (from N. 379 to N. 384) and concludes in black/red two tone in N. 385, where it is left incomplete. In 1943 the story was reprinted again in the Albo d'Oro Audace, but this time too it is incomplete. Finally, in 1950, the Audace publishing house reissues the Paparella plates in two issues of the Collana Ragno D’oro, setting the story no longer in 1950 but in 1960. With this edition, the story finally finds its conclusion,
