"So it would be something which we would all use, which we had to depend upon...."
"The water!" Dane had been holding his own canteen ready to drink. But as that possible explanation dawned in his mind, he smelled instead of tasted the liquid sloshing inside. There was no odor he could detect. But he remembered Tau commenting on the powdered purifier pills at their first camp.
"That's it!" Tau dug further into his kit, brought out the vial of white powder with its grainy lumps. Pouring a little into the palm of his hand he smelled it, touched it with the tip of his tongue. "Purifier and something else," he reported. "It could be one of half a dozen drugs, or some native stuff from here which we've never classified."
"True. There are drugs we have found here." Asaki scowled down at the green mat of jungle. "So our water is poisoned?"
"Do you always purify it?" Tau asked the Chief Ranger. "Surely during the centuries since your ancestors landed on Khatka you must have adapted to native water. You couldn't have lived otherwise. We must use the purifier, but must you?"
"There is water and water." Asaki shook his own canteen, his scowl growing fiercer as the gurgle from its depths was heard. "From springs on the other side of the mountains we drink—yes. But over here, this close to the Mygra swamps, we have not done so. We may have to chance it."
"Do you think we are literally poisoned?" Jellico bored directly to the heart of their private fears.
"None of us have been drinking too heavily," Tau observed thoughtfully. "And I don't believe Lumbrilo had outright killing in mind. How long the effect will last I have no way of telling."
"If we saw one rock ape," Dane wondered, "why didn't we see others? And why here and now?"
"That!" Tau pointed ahead on the trail Asaki had picked for their ascent. For a long moment Dane could see nothing of any interest there and then he located it—a finger of rock. It did not point directly skyward this time, in fact it slanted so that its tip indicated their back trail. Yet in outline the spire was very similar to that outcrop from which the real rock ape had charged them the day before.