h his attempts to reach Vale again, and with grisly
imaginings of what might be done by aliens from another world when
they found the workmen near the lake--and Jill among them. He pictured
alien monsters committing atrocities in what they might consider
scientific examination of terrestrial fauna. But somehow even that was
less horrible than the images that followed an assumption that the
occupants of the spaceship might be men.

"Calling Vale ... Vale, come in!" He fiercely repeated the call into
the instrument's microphone. "Lockley calling Vale! Come in, man! Come
in!"

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!_"

Silence. Around Lockley there were the usual sounds of the wilderness.
Insects made chirping noises. Birds called. There were those small
whispering and rustling and high-pitched sounds which in the wild
constitute stillness.

A scraping sound from the speaker. Vale's voice, frantic.

"_That ... exploring party. It's here! They must have picked up our
beams. They're looking for me. They've sighted me! They're comin