C293 King Corpse Reject Him Outside the Door

"In other words, the fire source is similar to the fire piston." Shen Wangchuan thought back to the ancient costume dramas he had seen before and the things they had done about the fire.

Only then did he bring out the fire piston.

"I know what you're going to say, but I want to be sure." Du Nanxi took out a small lighter from his backpack