Lego Harry Potter Dare you join Harry on a visit to the Shrieking Shack, the most haunted building in all of London? Lego Harry Potter Secret doors and traps are everywhere. Animagi even transform from wizards to animals with the help of a LEGO figure transformer. Lego Harry Potter Need a secret escape route to return to Hogwarts in a hurry? Lego Harry Potter Go thorough the trapdoor in the floor of Honeydukes candy shop and you'll be on your way.