At the far western wall of room 23 there is a rack containing various items: A belt, book, ring, tiara and warhammer, along with a quiver of arrows. As Mist can tell, they are all glistening with magic.
Fortunately Yuki is checking for traps, rather than to rush for the treasure. DIrectly in front of the door there is a pit trap concealed with a small carpet, covering the 5x5' square in front of it.