The Harry Potter Compendium

"It looked like an unused classroom. The dark shapes of desks and chairs were piled against the walls, and there was an upturned wastepaper basket – but propped against the wall facing him was something that didn’t look as if it belonged there, something that looked as if someone had just put it there to keep it out of the way."
—Description.[src]

This disused classroom[1], located on the fourth floor of Hogwarts Castle, is where the Mirror of Erised was kept from September to December, 1991, and where Harry Potter saw the image of himself and his deceased relatives including his parents, James and Lily. After this it was moved under the orders of Albus Dumbledore, in the hope that Harry would not go in search of it again.

Behind the scenes[]

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Hogwarts Castle
Locations on the fourth floor

Class 67 · Cuthbert Binns's office · Fourth Floor balcony · Fourth Floor Corridor · Fourth Floor hospital tower corridor · Hogwarts Library · Mirror of Erised storage room · Restricted Section · Study Area

Portraits, statues and other artwork located on the fourth floor

Barking Mad Male Gargoyle · Brutus Scrimgeour · Edward Rabnott · Hengist of Woodcroft · Landscape with trees · Temeritus Shanks