image here, The Deathday Party Hall[1] (also known as the Deathday Party Room)[2] was one of the roomier dungeons at Hogwarts Castle.[3]The room is accessible via the Dungeon Staircase. History: On 31 October,1992, this dungeon was where Sir Nicholas de Mimsy-Porpington'sfive-hundredth Deathday Party was held. Decorations for the event included several black velvet draperies, and a chandelier covered with jet-black candles with bright blue flames

image here The Dungeon Corridor is a long, gloomy stone corridor that leads from the narrow spiral staircase coming down from the Viaduct Entrance to the staircase leading down to the blank stone wall that is the entrance to the Slytherin Dungeon. The Potions Classroom and Ingrid Abbot's office can be found along this corridor.

This cupboard is a small room off the Dungeon Corridor, just before the dungeon hall. History: This room was where Rubeus Hagrid hid Aragog in the early1940s and, consequently, where Hagrid was framed by Tom Riddle on 13 June, 1943 as the one who had unleashed Slytherin's monster.

image here, The Potions Classroom is where Potions classes are taught. The classroom used to be squared-sized, very large, with large tables and windows. In the corner resides a stone basin used to wash students' hands and ladles. Below the classroom is a storage basement under the Potions classroom at Hogwarts Castle. It was accessible via a trapdoor and it was used to store cauldrons, ingredients and phials.

It is a gloomy and dimly-lit room found in the school Dungeons. The shadowy walls are lined with shelves of large glass jars filled with slimy, revolting things, such as bits of animals and plants, floating in potions of varying colours. The office has a fireplace. In a corner, there was a cupboard containing Abbot’'s private stock of potion ingredients along with an odd looking glass (a foe glass) tilting away from the desk. The office is sealed with a spell only advanced wizards can break.

image here, The Slytherin Dungeon is located behind a wall in the dungeons of Hogwarts. A Password spoken to the wall is required to enter it; whereupon a passage is revealed leading to the Common room -- a low-ceilinged, dungeon-like room with greenish lamps and chairs. This dungeon extends partway under the lake. Off of this room also includes the Slytherin Boys and Girls Dormitories.

The Slytherin girls dormitory was a room off of the Slytherin Common Room where female Slytherins sleep at night. The walls are decorated with Slytherin crests.They sleep in ancient four-posters with green silk hangings. During the night it is possible to listen to the lake water lapping against the windows. Also, silver lanterns hang from the ceilings.

The Slytherin boys' dormitory was a room off of the Slytherin Common Room where male Slytherins sleep at night. The walls are decorated with Slytherin crests. They sleep in ancient four-posters with green silk hangings. During the night it is possible to listen to the lake water lapping against the windows. Also, silver lanterns hang from the ceilings.