La chiave della conoscenza

Dexter Green and the men who travel with him, like Agent Lambert from "Elsewhere", slip into the buildings of a forgotten city, a lost colony of the Atlantis empire. Using the "Key of Knowledge", they manage to enter the ancient laboratories of a scientific base. When the Spirit-with-the-Hatchet finds Green, though, there’s no time for a reckoning: they are both forced to face an unexpected danger... a menace is lurking inside those antediluvian ruins, and it could spread in the world, destroying the entire human race: its name is Shayogan!