This, Duncan knew, was what had lain beneath that too-smooth interval between the two sets of Cytha tracks. The Cytha had worked all night to dig it, then had carried away the dirt dug out of the pit and had built a flimsy camouflage cover over it. Then it had gone back and made the trail that was so loud and clear, so easy to make out and follow. And having done all that, having labored hard and stealthily, the Cytha had settled down to watch, to make sure the following human had fallen in the pit.


i, pal," said Duncan. "How are you making out?"

The Cytha did not answer.

"Classy pit," said Duncan. "Do you always den up in luxury like this?"

But the Cytha didn't answer.

Something queer was happening to the Cytha. It was coming all apart.

Duncan watched with fascinated horror as the Cytha broke down into a thousand lumps of motion that scurried in the pit and tried to scramble up its sides, only to fall back in tiny showers of sand.