Eerie Fog (Dilemma)

This dilemma can occur at any time in the game, but usually takes a few days to show itself.

When faced with this dilemma, the player will be told that an eerie fog surrounds your current location, and one of your survivors believes something is inside and wants to investigate.

The player can either:
 * Allow the Survivor to Investigate The Fog
 * Prevent Them From Leaving