(1966) The Terrans have fled the Andro-Beta star cluster to avoid increased attacks by Mobys, which are apparently sent by the mysterious and powerful Andromedan "Masters of the Island." From their new vantage point, the Terrans identify several signals that may be guiding the attacks, and Perry sends scout teams to investigate. One team tracks their signal to a monster-infested swamp planet and it wouldn't be Perry Rhodan if they didn't land...