Alexis Walk, left, of Wales and Shelby Dagneau of Lewiston look for clues that will tell them whether their clothes are made of cotton or wool at Museum L-A in Lewiston. Children were given the task of solving various mysteries about historic objects during “Mystery Thursday” at the museum. Museum L-A offered three days of discovery-related activities during February break. “History itself is a pretty big mystery,” Kate Webber, director of education and outreach, told the kids. (Daryn Slover/Sun Journal)