Beyond the door is a cold, deep darkness that cannot be seen through, even with
darkvision. The very air seems to deaden sound. In fact, it is a deeper darkness spell
cast at 16'th level earlier in the day.
If the spell is brought down, or some other form of sight is used, a thick carpet of
dust will be seen. In the dust are some mummified rats. Closer inspection reveals that
the rats died of starvation...
There are three 120' long parallel passageways here, left, middle, and right. Each will
detect for traps if dectected. If the deeper darkness was not dispelled, it ends
halfway down the passages.
The left passage, the left wall will fall on anyone in the hall, doing 20d8 damage.
After the wall falls, this passage is relatively safe, except for having to pick
through the broken rubble.
The middle passage flips sideways, either side, dropping any who stand on it into a
100' deep spiked pit (10d6 falling damage, then d4+1 spikes, each doing d4 damage. If
the party has had too easy of a time of it, they are also poisoned, pick your
favorite).
The right passage falls forward... but only to about a 45 degree angle. It leads down
to a point where there are two large pins on either side of the wall, apparently this
sloping passage can be pinned into place. This leads to a
Secret Route