"We go. We haven't enough men to beat them if they should get inside the walls."

Smith brushed his small military mustache, his only sign of nervousness. Tex saw him start, saw him touch the bristles wonderingly, then finger his skin, his tunic, his hair.

"Dry," he said, and looked at the fog. "My Lord, dry!"

"Yes," returned Tex grimly. "Kuna brought it back. He couldn't get wet even when he tried to drink. Something that eats water. Even if the net holds, we'll die of thirst before we're relieved."

He turned in sudden fury on the distant figure of the woman and emptied his gun futilely at her swift-moving body.

"Save your ammunition," cautioned Smith, and cried out, sharply.

Tex saw it, the tiny green thing that had fastened on his wrist. He pulled his knife and lunged forward, but already the snake had grown incredibly. Smith tore at it vainly.

Tex got in one slash, felt his knife slip futilely on rubbery flesh of enormous contractile power. Then the venom began to work. A mad look twisted the officer's face. His gun rose and began to spit bullets.

Grimly, Tex shot the gun out of Smith's hand, and struck down with the gun-barrel. Smith fell. But already the snake had thrown a coil round his neck and shifted its grip to the jugular.

Tex sawed at the rubbery flesh. Beaten as though with a heavy whip, he stood at last with the body still writhing in his hand.