"All right," I said, "but be careful."

"I will. Now what do I do?"

"Advance the intensity knob and think what you want it to do."

There was a flurry of movement inside the tent, the thrashing of a huge body, and the second mammal burst through the opening and staggered clumsily to a stop.

"Reduce the intensity," I said. "You're projecting too strong a stimulus. Now uncover it and send it over with the other one to cool off. They're more bearable when they're cold. They exude the scent from their skin glands to compensate for temperature."

"I know," Ven said. "I studied biology." She did as I instructed and then dropped beside me. We relaxed, gathering our strength for the climb ahead. But I didn't recover rapidly. I could move, but the exertion made me dizzy. The excitement was over and reaction had set in. "I'll never make it," I said dully.

"I can help," Ven said—"a little."

"It won't be enough. You don't have the strength to carry me." I looked at the huge bodies of the mammals gleaming pallidly in the darkness, and suddenly I had an idea. The Slaads on Valga domesticated mammals. They were quadrupedal, true enough, but they were still mammals. Why couldn't I ride one of these as they did? Those great masses of muscle should carry me easily. "I think I have a solution," I said.

"What?"

"I'll have one of them carry me."