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From Pathfinder Society Scenario #7-08: The Haunted Corridor, which isn't enabled.

Duty's Soulshackle (3-4)

COMPLEX HAZARD 3
Stealth +20 (expert); noticing the staff has a DC of 0.
Description A length of humanoid spine is held into a staff by the hooked chain embedded in and entwined around it. Additional spectral chains of pure shadowstuff hold it aloft and sinuously surround it.

Disable DC 23 Arcana, DC 23 Occultism, or DC 23 Religion (trained) to disrupt the spectral energies channeled by the intelligent item. Each success reduces the haunt's actions by one. When the haunt has no more actions, it is disabled.

AC 13
Hardness 6, HP 30 (BT 15); Immunities critical hits, precision

Chained by Duty
Trigger Lyari proposes how to free herself from Duty's Soulshackle.

Effect Duty's Soulshackle quivers in rage before unleashing more spectral chains. The haunt then rolls initiative.
Call to Serve

Duty's Soulshackle creates a Shriveled Leaf of Talhindir within 10 feet of itself. It then cannot use this action for 1d6 rounds.

Melee Velstrac Chains +12 (magical), Damage 1d10+6 void
Routine (three actions) On its initiative, Duty's Soulshackle first uses Call to Serve if it's able to and spends any remaining actions making velstrac chains Strikes against its enemies.
Pathfinder Society Scenario #7-08: The Haunted CorridorORC