I'll work on that but the plugin increase the number of creatures (bear, boar, stag, murderer, scarecrow) per km square that means there are more creatures at night. All additional creatures spawned at night disappear when the day starts.
When a player die because from a creature at night, all player around with hear a scream (that could fear some player ).
When the night starts, a wolf howl at all players to inform them that the night has started