Vital Ingredient

"Nothing," Toolls answered. "No--we forgot nothing."

* * * * *

But Toolls was wrong. They had forgotten one thing. A minor detail, relatively....

On Toolls' world his race, in the course of its evolution, had adjusted itself to its own particular environment. Logically, the final result was that they evolved into beings best able to survive in that environment. As such their food--a "heavy," highly concentrated food--was ideally suited to supply the needs of their "heavy," tremendously avid organisms.

Orville Pollnow had no such food available. His body--no larger than before--had an Earth mass of one hundred and eighty thousand pounds. One hundred and eighty thousand pounds--the weight of twelve hundred average sized men--of fiercely burning, intense virility. Even continuous eating--of his own world's food--could not supply the demands of that body.

Twenty-four hours after the aliens left, Pollnow wa