Mission ideas:

Early rp:
-a renovated home is suddenly being haunted
-an apartment complex is troubled by a brownie
-a series of home invasions has been reported, all with the common element of no locks being picked

Mid-rp:
-a subway car has gone missing between two stops
-the local newspaper office is being beseiged by leaks, breaking pipes, and flooding sinks
-people around Axemouth are getting attacked, drugged, and found with unusual items in their pockets

Late rp:
-a cult with the intent of completely tearing down the barrier between the natural and supernatural world has come to Axemouth

I can detail these more, I just wanted to get the basic ideas down!