Sane helplessly smiled at his mate, then used his Divine Energy to create a high-heat lightning sphere, suspending it above the saltpeter water pot. The water in the pot evaporated quickly; Kaelen stared intently at the pot, timing it perfectly for Sane to promptly retract the sphere.
Saltpeter crystals that needed continuous stirring for a whole day and sun-drying for a night were now obtained in just a moment. Kaelen used a ceramic jar to scoop all the saltpeter into it, washing the stone pot clean.
He turned on the camera, beginning to talk endlessly about how to make ice.
"After having saltpeter, we can make ice. First, everyone prepares for me a thick wooden or stone basin and a smaller ceramic basin, the basin wall must be a bit thinner than a normal ceramic basin."
