. . .ars dying of some weird disease that the doctors couldn't identify. That had been from something caught on Earth. What would happen when the disease was from another planet?

It was ridiculous. Mars had no animal life, and even the thin lichenlike plants were sparse and tiny. A man couldn't catch a disease from a plant. Even horses didn't communicate their ills to men. Then Bill remembered gangrene and cancer, which could attack any life, apparently.

He went back to the tiny Geiger-Muller counter, but there was no sign of radiation from the big atomic motor that powered the ship. He stripped his clothes off, spotting more of the red marks breaking out, but finding no sign of parasites. He hadn't really believed it, anyhow. That wouldn't account for the sneezing and sniffles, or the puffed eyes and burning inside his nose and throat.

Dust, maybe? Mars had been dusty, a waste of reddish sand and desert silt that made the Sahara seem like paradise,. . . Read More