|Jim Groves Contributor, RPG Superstar 2010 Top 4|
In the false Akhentepi tomb, what happens if they successfully disable the trap (not by finding the hidden torch trigger, just made the perception and disable check in the boxed trap section) but then try to open the northern doors? Will that still trigger the waterfall, or is that turned off with the trap? What's in that room if the trap is turned off?
That is a good question!
There is nothing beyond the north doors besides a small space and a grate that leads to the aqueduct. It is a dead end.
First, the doors should be difficult to open and if the players were able to successfully locate the trap, they might (at your discretion) realize that the closed doors were part of the trap mechanism they discovered and disabled. In that case, they'll know not to bother.
If that is too kind for your taste, consider telling them if they succeeded on their Perception check by 5 or more.
If you don't want to tell them at all, do bear in mind these are not normal doors. They're part of a trap mechanism. forcing them open should be difficult. You might want to have them break them down or set a Disable Device check to open them. Say... DC 20, which is the same DC check to disable the trap.
If they do open the doors, flood the chambers for 4 rounds but don't trigger any of the other trap effects. After all, they found the trap fair and square and disabled it once. This should not be an opportunity to "trigger it anyways".
Hope this helps!