Young severus snape exploring the Room of Hidden Objects alone since when you wa

young severus snape exploring the Room of Hidden Objects alone since when you want to hide an object it materializes in the form of a kind of "mini-city" made up of thousands of objects that Hogwarts students of all generations were hiding. This was the place where Tom Riddle hid the Ravenclaw Diadem, which was actually now a Horcrux.