He flipped the switch and listened. And Vale's voice came.

"I'm here." The voice shook. "I've been trying to find where that exploring party went."

Lockley threw the speech switch and said sharply, "The Army asked Survey if any of us had seen anything come down from the sky. I gave Sattell your report to be forwarded. It's gone to the Pentagon now. Two radars reported tracking the thing down to a landing near you. Now listen! You go to the construction camp. Most likely they'll get orders to clear out, by short wave. But you go there! Make sure Jill's all right. See her to safety."

The switch once more. Vale's voice was desperate.

"A ... while ago a party of the creatures started away from the lake. An exploring party, I think. Once I saw a puff of steam as if they'd used a weapon. I'm afraid they may find the construction camp, and Jill...."

Lockley ground his teeth. Vale said unsteadily, "I ... can't find where they went.... A little while ago their ship backed out into the lake and sank. Deliberately! I don't know why. But there's a party of those ... creatures out exploring! I don't know what they'll do...."

Lockley said savagely, "Get to the camp and look after Jill! The workmen may have panicked. The Army'll know by this time what's happened. They'll send copters to get you out. They'll send help of some sort, somehow. But you look after Jill!"

Vale's voice changed.

"Wait. I heard something. Wait!"