Introduction to the Leaky Cauldron: The Leaky Cauldron is located between a large bookstore and a record store, and can only be seen by wizards. The guests here are more complicated than the Three Broomsticks, but it is an important passage into Diagon Alley, which is where Harry came to the wizarding world in his first year. The pub also provides accommodation, and third-year Harry spent half of his summer vacation here.