But we have to tidy up first, and we also need to build a few more frames. Thinking of this, Hua Chengtian suddenly realized that among all the things they had stockpiled, they didn't seem to have stocked lime and bricks.
"Dad, it's a good thing you remembered. We definitely need to stock up on more lime, and also saltpeter. We should take care of it as soon as we get back." Hua Jin felt a bit regretful for forgetting something so important.
Lime is excellent for both moisture-proofing and disinfection, so we must stock up on it.
Only then did Hua Chengtian realize that he had unconsciously voiced his thoughts. He nodded to himself.
The father and son looked at each other, calculating that it was almost time to meet up, so they quickly exited the cave and retraced their steps, with Hei Da closely following.
From afar, they could see the anxious expressions on the faces of his two sons, and Er Hui and San Huang ran to them excitedly.