Precarious Thunderstone Trap

A thunderstone balanced on a tripwire, set to drop and shatter the instant someone snags the line. The blast it makes is meant to deafen, not to kill.

Disable DC 15 Thievery (trained) to remove the thunderstone, or DC 18 Reflex save to catch the falling thunderstone.

Thunderstone [Reaction] (sonic)

Level 1 · Complexity Simple

Stealth DC 15 (trained)

Disable

• Thievery DC 15 (trained) — to remove the thunderstone
• DC 18 — save to catch the falling thunderstone

AC 12

HP 10 · Hardness 3

Immunities critical hits, object immunities, precision damage

Trigger The front gate is opened

Effect A moderate thunderstone falls on the flagstones and activates, dealing 2 sonic splash damage to each creature within 10 feet of the gate. Creatures in the area must succeed at a DC 17 Fortitude saving throw or be deafened for 1 round. Adjacent creatures can attempt to catch the falling thunderstone (see Disable, above).