You see a pirat patrol.
Notes
Part of the Stealth mission of A Pirate's Tail Quest.
Abilities
Kicks you out of the room if you get close to it
.
Damage Taken From Elements
Physical 
Death 
Holy 
Ice 
Fire
Energy
Earth
Drown
Location
Behaviour
They move back and forth in small areas, patrolling.
Strategy
Never walk near them or you'll fail at the mission.