"Shoot!" Lin hissed. "For God's sake, shoot!"

"Wait," Extrone said. "Let's see what they do." He had not moved the rifle. He was tense, bent forward, his eyes slitted, his breath beginning to sound like an asthmatic pump.

The lead farn beast sighted Ri. It lowered its head.

"Look!" Extrone cried excitedly. "Here it comes!"

Ri began to scream again.

Still Extrone did not lift his blast rifle. He was laughing. Lin waited, frozen, his eyes staring at the farn beast in fascination.

The farn beast plunged into the water, which was shallow, and, throwing a sheet of it to either side, headed across toward Ri.

"Watch! Watch!" Extrone cried gleefully.