Starting at noon on Saturday, July 20 (and Sunday, July 21), Fort Delaware will be under attack by Queen Esther’s Refugees on the Warpath, a mid to late 18th Century Living History group specializing in the frontier people who faced persecution from the encroachment into the Wyoming Valley, by what they regarded as the Connecticut Intruders. Will the settlers be able to defend themselves? You’ll have to come see the action in order to find out.