In this chapter, we learn that the young man who was supposed to destroy the marsh gas is dead, and that the city lord has been told about it. The young man, who has been studying the laws of physics for a month, has already succeeded in his goal of destroying the marshes gas. If he can continue to apply the laws to purify his physical body, he will be able to advance his body to the level of the underworld. The law of physics is like the law of fire, which is like a structure of running things. The only difference between the two is that the running things are destroyed by the law, whereas the physical body is strengthened by the laws. In other words, the law is just like a building block of a building. The idea is that if you build a building, the laws will come back to life. The problem is, if the building is destroyed by fire, then the law will not come back. If you use the law to purify your body, however, you'll still have to rebuild the laws because they're just like the runes.