Tapestry Corridor

The Tapestry Corridor is a dimly-lit corridor located on the first floor of Hogwarts Castle. It connects the Viaduct Entrance to the main first floor. Its walls are covered in tapestries and, hung over the tapestries, portraits of sleepy wizards. Severus Snape's private storeroom is located in this corridor. There is also a framed mirror on one of the walls.

History
In 1993, Harry Potter saw Peter Pettigrew's name on the Marauder's Map. He rushed down from the Gryffindor Tower in hope to see him. There was no light on at the Tapestry Corridor. Pettigrew, then-transformed in Scabbers, passed right through Harry on this corridor, to the latter's astonishment. Severus Snape then caught Harry on the dark corridor, and questioned Harry on the Marauder's Map or, as he saw it, a blank piece of parchment. Harry was then saved by Remus Lupin.

In 1995, Severus Snape and Igor Karkaroff discussed the Dark Mark on their arms inside Snape's storeroom, while Harry was passing by. When they noticed Harry Potter was there, Igor left. Snape then accused Harry of having stolen Gillyweed, boomslang skin and lacewing flies from his personal stores.