The Hogwarts Mental Institution

"What can you recall, Harry?" The man asked. "I went outside to talk with Ginny and that's all I remember." Harry concentrated, trying to remember the pieces of the past, but he kept coming up blank. "It seems the surgery has not benefited your illness." "Professor, what illness? Where am I?" "Where you've been for the last seven years, Harry. The Hogwarts Mental Institution."