Hitotsume-kozo

A Hitotsume-kozo resembles a young monk with one enormous eye in the center of a smooth face. It appears at quiet doors, peers into ledgers, and startles solitary travelers before fleeing with delighted laughter. Though rarely murderous, it remembers insults and may return with every household secret it managed to read through keyholes and paper walls.

Single Stare: one creature within 20 ft makes a Mind save or freezes in alarm and cannot move until the end of its next turn. Damage ends the effect immediately.

Too Much to See: three bright lights directed at its eye give it -2 to attacks and saves. Closing every ledger and naming it politely gives it a reason to leave without revealing what it learned.