1 Mike: I’m in the chamber of three chests. Yep, they’re here. Gold, silver, and wood.
2 Mike: Now I’ve triggered the tilting block trap, the rest of you can climb down safely.
3 Dustin: What if they put more traps into this Tomb of Horrors?
4 Mike: The fact that you’re climbing down a trap into a room with three more traps isn’t enough?

Another background from the adventure module, lovingly coloured by myself.

There really are a lot of traps in the Tomb of Horrors.