THE MISSION
The Exploratory and Evaluation Corps of the Federated Sentient Planets had sent ARCT-10, with it's mixed crew of ship-bred and planet-bound technicians, to Ireta to catalogue fauna and flora and search for new energy sources. It was a simple mission. A standard crew.

THE PROBLEM
Kai and his beautiful co-leader Varian, the bes xenob-yet in the businessm followed all the standard procedures - but the results of their investigations were totally unexpected. Not only were the planet's creatures larger than anyone had anticipated and the geological finds smaller, but the rescue ship had inexplicably disappeared.

THE NIGHTMARE
Then suddenly on a world of giant swamp creatures and deadly predators, a curious change had come over many of the members of the ARCT-10 crew...a change that would lead all of them, in one way or the other, into the primitive darknessof a future world.