on the blasts were silenced from the control room.

By the time an opening was cut in the heavy tanks, the cold had begun to
creep into the ship. The men worked desperately, and for a while
perspiration dampened their clothing. Then the chill crept deeper--and
they shivered. Their fingers grew numb, and they had to warm them over
a small electric unit, but the opening slowly enlarged beneath their
torches.

When the tube was fitted into the hole, and the metal began to flow
around the edges, even the torches seemed to throw little heat. Dick
knew his nose was frosted, and warned the others not to touch their nose
or ears. According to John's watch it required three hours to fit the
tube in place.

When they rang for the power to be turned on, they waited in vain. When
minutes passed without reaction, they glanced at each other in
consternation. Brown and Martin raced up the ramp while the others
waited. Within a few minutes the tubes began to fire and warmth slowly
drove back the numbing cold.

Water pipes had burst, and they hurried to stop the leaks. The main
tanks were uninjured, as the cold hadn't penetrated the big supplies in
storage.

Dick suddenly realized that Brown and Martin hadn't returned. When he
reached the upper deck all of the women were gathered near the room
where the crew had been left. The thermometer was only fifty degrees,
even then, and they shivered in heavy coats.

Every dome man was stretched out on the floor! As Dick stepped within,
his heart almost stopped beating--but they were only unconscious! His
breath escaped in a long sigh, after holding it for almost a minute.

Brown and Martin were trying to revive the prone forms. The control men
lay beside the others, brought there by the two earthmen. The eyes of
first one then another, slowly opened, and they looked around in
amazement. Cold affected them like an anaesthetic, causing complete
unconsciousness.

When the ship reached normal warmth, they felt as good as ever. It
hadn't been cold enough to freeze them, in their section, and not a man
was injured. When they understood what happened, the men hurried back to
the controls.

* * * * *

The heavy coils were soon fastened around the tube, and it was filled
through a valve on the upper side. A gauge was set to register the
pressure of the vapor within. They decided to raise steam pressure
enough to equal the compression of the fuel.

It required