Three articles concerning arson.

One. Random fires around a fortress, main fires, and setting fires.

"Main fires" refers to two fires set at both sides of the inner gate in the wall surrounding the army's camp.

"Random fires" refers to the act of opening a hole [in the fence] crawling in and setting fires in ten places outside the camp at a distance of three, four or five cho.

According to one document, "main fires" refers to setting fires at a distance of thirty ken (sixty meters) from the stockade. The fires are set with the help of an ally, and are made with a pile of wood seven shaku (two meters) in height. This fire is brighter than sun rise.