 The Ruum's work is collecting different species of animals within a 30-mile radius, weighing 160 pounds (give or take 15 pounds) and preserving them in a state of suspended animation for later retrieval.Many millions of years later Jim Irwin, a uranium prospector in the Canadian Rocky Mountains, encounters the Ruum's specimens, animals which include modern and prehistoric mammals and a small Stegosaurus.After he has noticed that the animals are all of a uniform size, and alive, the still-functioning Ruum appears.