I predatori dei mari

Two mysterious hooded persons, Lamagg and Ditoss, offer Professor Karl Bollow and his assistant Luisa Waters, Blue World Company technicians, a bionic system for creation of an amphibious human being. Eighteen months later, Nathan Never is hired by a bio-cybernetic research center to ensure the safety in transit of the first amphibian-cum-human, Carmix. But before Nathan reaches his destination, a group of pirates break into the underwater laboratory and carry Carmix off…

Second appearance of Atlandtidians (often seen in Martin Mystere episodes) in Nathan Never universe.