As an additional cost for you to move while not in a vehicle, you must spend 2 actions.

Forced - At the end of the round: Starting with the rearmost location, set each location with no vehicles, enemies, or investigators aside, out of play (or add it to the victory display if it has Victory X and has no clues on it). Stop when you reach a location with at least 1 vehicle, enemy, or investigator; or the location behind the rearmost investigator.

Spawn - Rearmost location.

Hunter. Massive. Retaliate.

Forced - When The Terror of Devil Reef would be defeated: Instead, remove all damage from it and exhaust it. It cannot ready for the remainder of the round.