There is a room protected by a few '''Explosion Traps'''. [[Sir Arif]] can be found there, who deals in [[Sigil Scripting]]. Further back in this room is a connection to [[Serbule Sewers]].

The first chest is at the end of the corridor "that players seem to all miss". The other three are deeper in. (None are on the second floor past Khyrulek.) Each chest can be opened by all players once per hour, so you can team up to collect the chests. The loot has above-average chances for nice level 20 gear.