Invisible Ink (Simple)

Alchemical Tool

Price: 2 gp
Weight: —
Construction: Craft (alchemy) DC 15

Description

Invisible ink is a staple of spies, rebels, and secret societies everywhere. Messages written with Invisible ink only become visible under specific circumstances. Revealing the secret message with the proper triggering agent is a Full-Round Action per page of text. A successful Craft (alchemy) check reveals the message without the proper trigger and takes 1 hour (the DC varies by ink quality).

Simple: This ink is keyed to a single, fairly common trigger, such as heat or vinegar (DC 20 to reveal without the trigger).