Falling Log Barrier
Trap
Level 5 Obstacle
XP 200

Several logs have been hoisted above the forest road and hidden within a canopy of branches to be dropped as an obstruction.

Trap: The logs tumble onto the road below and become an impassible obstacle for carts and wagons.Perception     DC 12: The character who looks up notices that several branches have been gathered together.     DC 17: The character who looks up notices that a score of logs have been suspended above the gathered branches.     DC 17: The character notices a length of rope buried under the dirt.Nature     DC 17: The character who looks up notices that the tree canopy has grown unnaturally.TriggerWhen a creature moves across the trip rope hidden under the road, the trap activates.AttackImmediate Interrupt      Close burst 2
Target: Creatures in burstAttack: +10 vs. ReflexHit: 2d10 + 6 damage and the target is immobilized (save ends).Miss: Half damage and the target is immobilized until the end of its next turn.Effect: Any creature caught in the burst area (shown on the map) is attacked by the trap. After the logs fall, the burst area remains an impassible barrier for carts and wagons until cleared.Countermeasures     A character who notices the trip rope can easily avoid it by stepping over.
     Thievery DC 17: An adjacent character can disable the trip rope without causing the suspended logs to fall.
     A character can attack the rope used to suspend the logs, causing them to fall prematurely (AC 10, HP 5).
     A character can leap over the fallen logs, which are 25 feet across and 5 feet high at the highest point.

Published in Dungeon Magazine 178, page(s) 17.