The young man came on, and his face was dark and dangerous.

"Saul, wait!" cried Jen.

Saul didn't wait. He kept right on coming. Trevor let him get close before he swung, and he put every ounce of his strength behind the blow.

The smashing fist took Saul squarely in the belly and sent him backward, doubled up. Trevor stood with hunched shoulders, breathing hard, watching the others with feral eyes.

"What are you?" he snarled. "A bunch of thieves? All right, come on! I got that stone the hard way and I'm going to keep it!"

Big words. A big anger. And a big fear behind them. The men were around him in a ring now. There was no chance of breaking away. Even if he did he was so winded they could pull him down in minutes. The stone weighed heavy in his pocket, heavy as half a lifetime of sweat and hunger and hard work, on the rockpiles of Mercury.

Saul straightened up. His face was still gray, but he bent again and picked up a sharp-pointed implement of rock that he had dropped. Then he moved forward. And the others closed in, at the same time, quite silently.

There was a bitter taste in Trevor's mouth as he waited for them. To get his hands on a sun-stone at last, and then to lose it and probably his life too, to this crowd of savages! It was more than anybody ought to be asked to bear.

"Saul, wait!" cried Jen again, pushing in front of him. "He saved my life! You can't just...."

"He's a Korin. A spy."