The controls of that door were plainly in
sight but he did not touch them. Instead he
hauled a portable scanner off the sledge
and used it to examine the intimate
molecular structure of the metal and all its
control connections. By this means he
found the particular bolt-head that was a
switch and turned it, immobilizing a
certain device set to catch an unknowing
intruder as soon as he opened the valve.
Within minutes after that Garrand had
the door open and was standing at the head
of a steep flight of steps, going down. His
heart was still thudding away and he felt
weak in the knees—but he was filled with
exultation and a great pride. Few other
men, he thought, perhaps none, could have
penetrated safely to the very threshold of
this most impregnable of all places in the
Solar System.
He did not relax his caution. A large
mass of equipment went with him down
the dark stairway, including the scanner.
The valve closed automatically behind him
and below in a small chamber he waited
until pressure had build up and another
door automatically opened. He found
nothing more of menace except a system of
alarm bells, which he put out of
commission—not because there was
anyone to hear them but because he knew
there would be recorders and he wanted no
signs, audible or visible, of his visit.
HE recorders themselves were
relatively easy to detect. With an
instrument brought for the purpose he
blanked off their relay systems and went
on across the great circular central
chamber with the glassite dome through
which the sunlight poured. He peered with
a scientist’s fascinated wonder at the
laboratory apparatus of various sorts in that
and the smaller chambers which opened
off it until he came to what of all things he
was looking for—the heavy locked door of
a vault, sunk deep in the lunar rock.
Garrand worked for a long time over
that door. The silence was beginning to get
to him and the uneasy knowledge that he
was where he had no right to be. He began
to listen for the voices and the steps of
those who might come in and find him.
They were far away and Garrand knew
that he was safe.
But he was not a criminal by habit and
now that the challenge to his skill was past
he began to feel increasingly guilty and
unclean. Personal belongings accused him,
an open book, a pair of boots, beds and
chests and clothing. If it had been merely a
laboratory he would not have minded so
much—but it was also a dwelling place
and he felt like a common thief.
HAT feeling was forgotten when he
entered the vault. There were many
things in that vast lunar cavern, but
Garrand had no more than a passing glance
for any of them except the massive file-
racks where the recorded data which
related to voyages were spooled and kept.
Under the clear light that had come on
of itself with the opening of the door
Garrand searched the racks, puzzling out
the intricate filing system. He had taken off
his helmet. His hands shook visibly and his
breathing was loud and irregular but these
were only secondary manifestations.
His mind, faced with a difficult problem
to solve, slipped by long habit into
calculating-machine efficiency and it was
not long before he found what he wanted.
He took the spool in his two hands, as
tenderly as though it were made of the
delicate stuff of dreams and apt to shatter
at a breath. He carried it to the large table
that stood by the racks and fed the end of
the tape into a reader. His face had grown
pale and quite rigid except that his mouth
twitched a little at the corners. He set up
his last piece of equipment beside the
reader, a photosonic recorder used to make
copies of a master spool, synchronized
them and then closed the switches.
The two spools unwound, one giving,
the other receiving, and Garrand remained
motionless over the viewer, seeing visions
beyond price and listening to the voices
that spoke of cosmic secrets. When the