1 Lucas: If this is the Tomb of Horrors, we’re doomed.
2 Dustin: No we’re not. We’ve played this module!
3 Dustin: We know where all the traps are. We can avoid them! We can get through this dungeon!
4 Lucas: And come across Acererak the demi-lich!!
4 Dustin: Your point is well taken.

The aforementioned illustration booklet included in Tomb of Horrors contains two different views of this corridor: the long perspective view down the corridor as seen in the previous strip and panels 1, 2, 4 of this strip, and a front-on view of the part of the wall showing the box being held by the two jackal-headed figures, as seen in panel 3 here. So I wanted to show off both views.