Kenna Robertson, left, Angel McCormack, and Madyson Weir dared to put their hands into “mysterious” substances as Girl Guide Susan Stewart looked on yesterday during Hallowe’en activities at the Fort Frances Museum. A steady stream of youngsters went to the museum on their day off from school to bob for apples, carve pumpkins, watch the movie “A Night at the Museum,” and go on an archaeological dig in the dark, among other activities.