Source: The Fog
Location: Off the coast of California...unless they are feeling frisky
Threat Assessment: 5. They can't be killed. They can fade in and out of the fog they reside in. They are armed.
Limitations: They stay in their fog which doesn't so much as slow them down but does act as an early warning. Vengeful minded they stick to haunting the town that killed them. Like most ghosts they follow their own rules, in this case they attack only between midnight and one am. One wonders what they make of daylight savings time.