The minutes following were interminable, horribly embarrassing. At last she touched his shoulder. "All right, Calvin," she whispered.

One by one the others used the sand box. By the time they were through with the unspeakably primitive ritual, she had become almost inured to it, and considered herself to be admirably calm. There were unsuspected resources in her nature, she thought.

"When do you suppose they feed us?" asked Watkins. He was holding his tan briefcase under his left arm; he hadn't once laid it down. "I'm so empty I rattle."

"Soon," said Calvin firmly, and she felt reassured.

Summersby was standing by the door-wall, his great hands working along the seams of his trouser legs. A violent temper, held in check, thought Mrs. Full. He was the worst of the problems facing them, except for the unknown animals.

Even as she looked at him, the wall opened again. This time no one jumped or shrieked, though she felt her breath hiss back over her tongue. Watkins said, "Well, Viva, here's your pal again."

The Mexican glared. Evidently the joke was a stale one to him. "My name is Villa, not Viva. I hope you get a good taste of that green stick, you little man!"

"Viva Villa," said Watkins. "Lead on. You know the way."