pf2e.fyi
From Pathfinder Book of the Dead, which isn't enabled.

Final Words

HAZARD 4
Stealth +12 (trained) to hear the scratch of a quill upon paper
Description As a creature touches a hand-written letter, they witness the letter's author scribe it in the past; each pen stroke across the page carves the letter's text into the creature's flesh.

Disable DC 24 Religion (trained) to ward off the haunt or DC 25 Thievery (trained) to dispose of the letter with extreme care before the haunt can form

AC 10
HP 10 (BT 5)

Carve in Flesh (divine, visual)
Trigger A creature reads the letter

Effect The haunt deals 2d8+11 slashing damage to the triggering creature as the words are carved into its flesh (DC 21 basic Will). On a failure, the creature takes 2d8 bleed.
Reset 1 minute
Pathfinder Book of the DeadOGL