Bottomless Pit

A trapdoor concealed in the floor that opens onto a shaft with no bottom — magic stretches the fall into an endless plunge into darkness. Whatever steps onto it simply keeps falling.

Infinite Pitfall [Reaction]

Level 9 · Complexity Simple

Stealth DC 30 — (or 0 if the trapdoor is disabled or broken) or detect magic

Disable Thievery DC 28 (trained) — to remove the trapdo

AC 28

HP 36 · Hardness 9

Immunities critical hits, object immunities, precision damage

Trigger A creature walks onto the trapdoor

Effect The triggering creature falls in and continues to fall, potentially forever. That creature can try to Grab an Edge to avoid falling. The DC to Climb the walls or Grab an Edge is 26. The pit contains many handholds, so the falling creature can try to Grab an Edge again every 6 seconds. If the creature succeeds, it can start to Climb out from that point (though it might be a very long climb, depending on how far the creature fell).

Reset The trap still causes creatures to fall forever if they fall in, but the trapdoor must be reset manually for the trap to become hidden again.