From Pathfinder Kingmaker, which isn't enabled.

Test of Strength

HAZARD 13

Stealth +27 (expert)

Description The steps angle downward into a slope, releasing all currently placed boulders to roll back down to the north.

Disable DC 37 Thievery (expert) to disable the hidden hinges for one of the steps, thereby locking all four steps into place

Open Doors

Trigger All four boulders are placed within six minutes;

Effect the doors to area D4 open.

Release Boulders

Trigger All four boulders are not placed within six minutes

Effect All four steps angle downward, causing any boulders held within to roll toward area D1. Each rolling boulder inflicts 3d6 + 6 bludgeoning damage on all creatures in area D2(DC 37 basic Reflex).

Reset The trap Releases Boulders 24 hours after it Opens Doors. Once the trap Releases Boulders, it resets itself automatically.

Pathfinder KingmakerOGL