Perhaps it start moving randomly, but after visiting a place that the players have been it catches their scent and chases them more likley.
Or their is escalation, that goes up based on certain criteria, the Ghastly Mutated becomes more of a threat the longer it takes. More events related to it....
Perhaps it start moving randomly, but after visiting a place that the players have been it catches their scent and chases them more likley.
Or their is escalation, that goes up based on certain criteria, the Ghastly Mutated becomes more of a threat the longer it takes. More events related to it....