"It's a trap!" he shouted. "The whole place is surrounded. There are thousands of Ogrum out there. They deliberately let us enter the temple, then they closed up behind us."

"Impossible!" Craig whispered.

"So help me, it's the truth," the ensign insisted. "They deliberately trapped us. They must have known all along what we were going to try. They let us try it. We're caught, like rats in a trap."

There was no mistaking the implication of the man's words. Although he didn't say it, his tone indicated that Craig had led them into the worst possible booby-trap.

The machine guns were still firing. Dimly audible from outside came a chorus of shouting—the battle cries of the Ogrum. Craig slipped forward to the entrance, looked out. His heart climbed up into his throat.

The temple was completely surrounded. Or, as far as he could see, it was surrounded. From the number of Ogrum he could see in front, he did not doubt that the whole structure was circled. The Ogrum had stopped fighting the fires. It became apparent that they had never made any real effort to fight them but had only pretended to extinguish the blazes, meanwhile waiting for Craig to lead his group into the temple.

It was a trap.

But how had the Ogrum been able to set such a trap? Had they known all the time of the presence of the humans on the mountain above them? They had known something. Otherwise they would not have been able to set the trap. How had they learned of the attack? How had they known the exact way the attack would come?

"Yah!" a voice shrilled from outside. "How do you like it now, you big fat-head?"

Voronoff's voice! Voronoff was out there! Craig's first dazed thought was that Voronoff's presence outside, among the Ogrum, was impossible. He tried to remember when he had last seen the man. He hadn't seen Voronoff all day! Voronoff had not been a member of his group but he had assumed the man had attached himself to some other group!