If the great helm fits, wear it: Chase Messing, 5, dons a Middle Ages battle helmet used by knights around 1375. Messing and 45 children and adults were treated to demonstrations Wednesday by the Knights of Veritas at the kickoff of the Spokane County Library District’s Airway Heights Library School Age Program. John Allen, rear, dressed in 55 pounds of armor and let the children see an up-close view of the authentic items. The Knights of Veritas will perform nearly 60 shows throughout the summer.