Alright, so lets see, seems each monster has a chance (or only ghosts) of dropping a map, letting you explore
Upon using the map, you get 3 options, Attic, Main floor, or Bacement
Attic -
Top option - more maps. once (per day?)
second option- ghost trap.
third option - looks like ML+5 maybe, getting 1 more substat then normal... altho suddenlly trerro is getting 1 shotted by the enemys there after clicking that... whoops! their damage jumped from about 8, to 50 D: Clicking it again turns the ML back down.
fourth option - not sure, weird text about hairy chicks o_0
Main floor -
top option - ML+ again, turns up and down
second option - you see an orc die, seems about the same as the fourth option in the attic
third option - a closet full of skelitons, none/unknown effect
fourth option - gain ghostly paint
bacement floor -
Top option - leads to a props room with 3 options
top option - obtain chainsaw chain
middle option - a melting bench, i dont have anything to melt down
bottom option - obtain funhouse mirror
second option - nothing clear
third option - ML+