Il canto della Sirena

A revolutionary prototype of electronic sonar lies on the seabed between the Bahamas and Cuba. To recover it, the US secret services are thinking of using dolphins trained by two scientists from Miami. Meanwhile, in Crete, Martin and Java discover an ancient Atlantean laboratory in which hallucinating hybrids such as mermaids, centaurs and minotaurs had been created. The discovery is sensational, but the Detective of the Impossible must deal with the Men in Black!