When, at last, his head appeared at the far end of the tunnel he wore, again, his placid fighting smile.

The top CFC man dawdled in his swivel chair. The two blister gunners nodded and looked back into the neutral nothing of their provinces. The third chap smiled softly.

Colonel Calm came down the ladder, stretched, picked up his chute familiarly, and went on to the radar room. It was, he thought, glancing back at the tunnel opening, hardly bigger than a torpedo tube. The craft in many ways resembled a submarine, when you thought about it.

There were four men in the radar room. Two at tables. One squatting, rocking with the plane's slight motion; and one stretched on the Army cot. He saw the colonel.

"'Shun!" he bawled.

"At ease, for God's sake!" Colonel Calm went to an old man who stared into the hood of a scope with the fascinated pleasure of a child seeing his first stereopticon slides. "Well, doctor? How is it going?"

Sopho glanced up—and he smiled, too. That was the thing about the colonel's mouth and eyes: you saw and you also smiled. Even when the kamikaze had connected, when Number 3 engine was on fire—pluming smoke and the CO2 wasn't making headway, when flak splashed black flowers on the morning, when tracers rose like tennis balls, the deck was slick with gunners' blood, and when the inadequate, high, freezing air whistled through the ship—scaling fast, bits of plexiglass. Even then, he smiled—and you smiled back—and went on.

"Wonderful gadget," Dr. Sopho said, pointing to the hood, within which the colonel could see a scanning light-streak and the radiant wake, following and fading perpetually. "After this trip," the scientist went on, "maybe we can go back to work. Real work. Maybe—" he pointed at the scope—"use that for saving a few lives, instead."

"Hope so." The colonel thought of his tedious wife—of weary years in Washington—desiccated military establishments in Texas—the drain and drag of peacetime. "Hope so," he lied. "Everything set?"

Sopho grinned. "Hope so."