It’s magic. As to why it stops, it seems to stop when it consumes itself as a means of fuel: “once it takes fire, the substance will burn fiercely until it is no more.”
Just a backup in advance of the detumblring
It’s magic. As to why it stops, it seems to stop when it consumes itself as a means of fuel: “once it takes fire, the substance will burn fiercely until it is no more.”