“Now, take this one, for instance,” said Dr. Pilar. He was holding up a native fruit. It bulged in the middle, and had a chartreuse rind with heliotrope spots on it. “It’s a very good example of exactly what we’re up against. Ever since we discovered this particular fruit, we’ve been interested in it because the analyses show that it should be an excellent source of basic food elements. Presumably, it even tastes good; our monkeys seemed to like it.”
“What’s the matter with it, then?” asked Major Grodski, eying the fruit with sleepy curiosity.
Dr. Pilar gave the thing a wry look and put it back in the specimen bag. “Except for the fact that it has killed every one of our test specimens, we don’t know what’s wrong with it.”
Colonel Fennister looked around the laboratory at the cages full of chittering animals—monkeys, white mice, rats, guinea pigs, hamsters, and the others. Then he looked back at the scientist. “Don’t you know what killed them?”
Pilar didn’t answer; instead, he glanced at Dr. Smathers, the physician.
Smathers steepled his fingers over his abdomen and rubbed his fingertips together. “We’re not sure. Thus far, it looks as though death was caused by oxygen starvation in the tissues.”
“Some kind of anemia?” hazarded the colonel.
Smathers frowned. “The end results are similar, but there is no drop in the hemoglobin—in fact, it seems to rise a little. We’re still investigating that. We haven’t got all the answers yet, by any means, but since we don’t quite know what to look for, we’re rather hampered.”
The colonel nodded slowly. “Lack of equipment?”
“Pretty much so,” admitted Dr. Smathers. “Remember, we’re just here for preliminary investigation. When the ship brings in more men and equipment—”