Three children romped down the trail, shouting in unison, "We found the Osage Orange! We found the Osage Orange!" The softball-sized fruit, with its bright green, wrinkled shell was the last thing they needed to complete a 26-item scavenger hunt on the Chapman-DeMary Trail in Purcellville — having already discovered hackberry, wild grape, a small island in the creek, a bug on the ground, a good hiding place, and the rest.