Originally posted by WillDemon
Which mystery is the one missing in Silent Hill Historical Society?
EDIT:
Figured out after much chagrin, upon loading the save from this set make your way to the Centennial Building. Once you come around to it from the park and head down the stairs, there will be a doorway with the last mystery on the wall inside. Trophy might take a while to pop, it was about 2 minutes for me.
Thanks mate! Another user uploaded an image but I could't figured out where it was. I guess this time "A thousand words is better than a picture".