There's a square with a question mark on the ground near granny's cabin. I'm thinking it's a strawberry or some secret but it looks tough to get. Judging by the symbols on it I think I need to get Madeline over there with 2 dashes (purple hair) but I can't figure out a way to do it. Does anyone know anything to help me?
You need to grab the Double dash at the top of the image and go all the way around the center tower back to the secret square!