Chandler, followed by Marta, continued down the hall to Kotenko's room. He knocked loudly. There was no answer. He knocked again and shouted Kotenko's name. Other doors opened and people stared out.

"The drill," Chandler said, and ran out of the building. As the door swung closed, he heard Marta calling after him. He was conscious of someone pushing through the door behind him as he bounded across the meadow toward the drill.

A small Army verti-plane swung down alongside him.

"Halt!" an amplified voice boomed.

Chandler stopped and faced the plane. "It's me, Dr. Chandler."

The plane settled down beside him. "Oh, yes, sir," the voice apologized. "We saw you running and—"

"Quick, take me to the drill," Chandler said.

"Yes, sir," said the voice.

The verti-plane floated down beside the massive control ring and Chandler, followed by two armed soldiers, raced through the main doors.

"Halt."