Chapter 52 Guerilla tactics.

Lucifer and other ghosts learned the secret of destruction bombs and practised it. At the same time, Xaro and his subordinates kept on sealing the mirror. They were already at the 40% mark, and as they did not receive any tribulation at the 30% and 40% cent marks, Xaro's belief in the theory that the tribulation at 10% came because of the North and King increased. Xaro was in a happy mood. His mission was going smoothly, and if the upcoming tribulations weren't intense, he believed he could seal the mirror much earlier.

While Xaro and his subordinates were sealing the mirror, Lucifer and his army learned how to make destruction bombs. The ghosts who looked talented were put in a separate team. The destruction bomb they were learning was an early version of the destruction bombs used in the land of swords. However, as their target were immovable ghosts and they were very few in number, the earlier version was perfect for it.