As Irving and the others escaped into the sewer, Elder Lawrence quickly arrived in front of the largest building in Shadow City. This building was, of course, the headquarters of the Night Blades and also the control center of Shadow City. Here, the members of the Night Blades could control everything within Shadow City.
Elder Lawrence had initially thought that he could rely on the power of the control center to eliminate both Irving and the King of Lightning. However, upon seeing the state of the control center, he abandoned his previous plan.
The control center had been completely destroyed. Amidst the ruins, Elder Lawrence could still see some of the slain members of the Night Blades. It didn't take long for him to deduce who was responsible for the destruction of the Shadow City control center.
Lawrence discovered traces of magic used by the Angel Guild among the ruins.