Harry Enters Tom Riddle's Memory

The diary transports Harry into Tom Riddle's memory, where he witnesses a conversation between Riddle and Armando Dippet, the headmaster at the time. Riddle requests to stay at Hogwarts over the summer, but Dippet refuses due to the ongoing attacks. After leaving Dippet's office, Riddle runs into a younger Albus Dumbledore, who warns him not to wander the corridors.