This "cinenovel" (as some comics were called at that time) had already appeared in "L'Audace" in 1938 in N. 253 - 285. The story revolves around a precious black pearl that affords access to a mysterious city, where untold treasure is hidden. The protagonists are Sandro, a young journalist, the beautiful Anna and the perfidious Moro, whose deeds take place in another exotic framework, Melanesa, entrancingly evoked by Caprioli's masterly artwork.
