World-Ending Demon Emperor

But there was another deadly element, white phosphorus!

Once exposed to air and if the temperature exceeded forty degrees, it would burn.

Suo Lun had purchased a large amount of white phosphorus, and it was all stored in oil barrels. He had pierced several holes in some barrels, and from the moment he left Tianye City, the whale oil was continuously leaking. Suo Lun was cunning, the leaking whale oil flowed from smaller barrels into larger ones, preventing detection.

Once eighty percent of the oil in the small barrels had leaked out, the white phosphorus could no longer be completely covered and would be exposed to air.

However, for white phosphorus to burn, besides contact with humid air, another condition was required: the temperature needed to reach forty degrees.

At this time, though it was the end of autumn, this place was at the southwest end of Central Earth, where temperatures were consistently above thirty degrees year-round. Not to mention, this was a desert, where the sun harshly baked the ground every day, comfortably pushing surface temperatures past fifty degrees.

The ancient underground city here was somewhat cooler, but still hot like a steaming basket.

So, the temperature was bound to exceed forty degrees,

Which meant that as soon as the whale oil ran out and the white phosphorus came into contact with air, it would ignite instantly.

And within his goods, there were countless barrels of whale oil, weighing more than ten thousand catties.

This substance was comparable to gasoline. Once it ignited, it would become a fire that could shake the heavens. In the confined underground space, it would result in a fierce explosion in an instant.