Lu Yuan didn't stay idle either; he needed to make some insulated bags.
They would be needed tomorrow.
Otherwise, in this sixth-month weather, the ice and snow from the mountaintop would melt before they could even be transported down.
Of course, besides the insulated bags, he also needed to build an insulated chest to store the Long Snake.
Fortunately, making these little gadgets was second nature to Lu Yuan by now.
Lu Yuan extracted substances from Spirit Stone Residue. No one would want this stuff.
And no one knew what chemical components were in the Spirit Stone Residue—unless the people here were good at chemistry.
But in this era of the Divine Ling Empire, how could anyone possibly understand chemistry?
Lu Yuan, however, knew a little. He purified and extracted from the Spirit Stone Residue.
He heated it, then cooled it to set its shape.
