Chapter 5

His movements went from clumsy to practiced with astonishing speed.

He was so completely absorbed that it was as though the extreme cold outside and the madness that had consumed him before had both faded away. He had become the eccentric engineering genius who had once been obsessed with creating things.

There wasn't much I could do to help. I assisted where I could, then gathered some discarded wood and old books. In a corner, I used the alcohol to start a small fire, both to keep us warm and to provide the initial heat for Uncle Xavier's "hot side."

Several hours later, a crude but unusual device finally took shape.

A copper heatsink was connected to coils and magnets, forming a thermoelectric module. The Stirling engine model had been cleverly modified, with its flywheel connected to a small fan blade cut from sheet metal.

I positioned the device so that its hot side was close to the fire while its cold side rested against the icy wall.

Then I held my breath.

A faint electrical crackle sounded. The small light bulb connected to the device flickered a few times before settling into a steady, dim yellow glow!

At the same time, the Stirling engine's flywheel began turning slowly, driving the little fan and sending out a faint but unmistakable stream of warm air.

Light and heat!

In this frozen hell of despair, we had used discarded "junk" and human ingenuity to create the spark of civilization with our own hands!

Uncle Xavier stared at the steadily glowing bulb and the spinning flywheel. Then he looked at me. His dirty face broke into a clear, pure smile, as innocent as a child's.

That smile drove away the gloom in the basement. It was warmer than the faint glow of the fire itself.

"It... it worked..." He struggled to force the words out. His voice was hoarse, but unmistakably clear.

Although the thermal energy stove Uncle Xavier had created had limited output, it completely changed our chances of survival.

The warm air it produced kept the basement temperature in the teens below zero. It was still bitterly cold, but at least we weren't losing body heat fast enough to die.

The light brought illumination. More importantly, the small but steady supply of electricity meant we could charge certain devices.

I found an old flashlight and a radio.

We divided the work between us.

Whenever the blizzard let up, I ventured into other parts of the villa and even into the partially collapsed neighboring houses. I searched for more fuel, canned food that hadn't frozen, warm clothing, and the various raw materials on Uncle Xavier's list: more metals, electronic components, and chemical reagents.

In an empty house a little farther away, I found half a bucket of antifreeze.

Uncle Xavier was ecstatic. His condition continued to improve. I taught him to speak every day. His recovery was slow, but we could now communicate without much difficulty.

He kept improving the device. Using copper tubing and the antifreeze I'd found, he designed a simple heat-exchange system that made more efficient use of waste heat from the exhaust.

He even began experimenting with ice and salt to create a lower temperature on the cold side, hoping to improve power-generation efficiency.

He also managed to repair an old crystal radio.

Then, one day, several weeks later, a desperate distress call suddenly crackled through the radio.

"This... is Westcliff Shelter 3... the official evacuation shelter! Our main heating boiler has malfunctioned... Our fuel supply is almost exhausted... Repeat... We urgently need a thermal energy engineer and fuel! Temperatures are dropping rapidly... Can anyone hear us? Mayday!"

Westcliff Shelter 3?