Wailing Ghost

The wailing ghost is bound to the labyrinth and can't stray from its location.

A typical ghost can stray only a short distance from where it was killed or the place it haunts. A typical limit is 120 feet. Some ghosts are instead bound to a room, building, item, or creature that was special to it rather than a location.

When a ghost is destroyed, it re-forms after within the location it's bound to, fully healed. A ghost can be permanently destroyed only if someone determines the reason for its existence and sets right whatever prevents the spirit from resting.

The wailing ghost shakes with a terrible sob, forcing each living creature within 15-foot area to attempt a DC 18 will save. On a failure, a creature becomes Frightened 1 (or Frightened 2 on a critical failure). On a success, a creature is temporarily immune to this ghost's Weeping Moan for 1 minute.