As they watched the name settled, and then Tom Riddle stood stock-still in the middle of his office for a long second - and then he dove out the window. Fred and George made a collective and involuntary gasping sound of shock; they were on the fifth floor, and it was a very long drop to the ground. The Defense professor did not apparently seem to mind this obvious problem; as the Map followed him across the grounds, he sped across it at a rather alarming speed, and disappeared into the Forbidden Forest.