Synopsis: Fraesch arrived on the planet Mulcahen to replace a missing scientist at Halcyon Station. That was the name of the very isolated and weirdly constructed laboratory of Speculations, Inc. What was going on there was not clear - but Fraesch suspected that it had to do with immortality drugs. So did the owners of the planet, a Russian-Turkish combine, who were shadowing Fraesch from the moment of his arrival. When Fraesch realized that his predecessor had vanished without trace and that he was surely going to be next, the situation began to assume it true ominous color. Long life or not, the next wave of the unknown was slated to wash him out - and the station - as well.... (from the back cover of the DAW Books third printing).