Slytherin Dungeon

The Slytherin Dungeon is located behind a wall in the cellars of Hogwarts School of Witchcraft and Wizardry. 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. The common room has lots of low backed black and dark green leather sofas with buttons, skulls, and dark wood cupboards. It has quite a grand atmosphere, but also quite a spooky, cold one.

1992
In Harry Potter's second year, he and Ron Weasley went into the Slytherin common room disguised as Vincent Crabbe and Gregory Goyle with the aid of Polyjuice Potion to attempt to discover the identity of the Heir of Slytherin. The entry password was Pure-blood when Draco Malfoy let them in. The Polyjuice Potion's wearing off prompted Harry and Ron to leave after staying nearly an hour, still not finding out the identity of the Heir of Slytherin.

1998
In 1998, Harry, operating under the alias "Vernon Dudley," attempted to defend his false claim that he was a member of the Slytherin house by describing the location of the Dungeon to the Snatchers.

Known Passwords
Pure-Blood

Behind the Scenes
In the video game version of Harry Potter and the Chamber of Secrets, there is a whole way to the common room, where there are a few enemies, like Gnomes and Cornish Pixies. There is also a brige between the Dungeons and the common room, holded by Ectoplasm. A Slytherin student casts Skurge on the Ectoplasm, so you have to find a way to make the bridge.

Appearances

 * Harry Potter and the Chamber of Secrets
 * Harry Potter and the Chamber of Secrets (film)
 * Harry Potter and the Chamber of Secrets (video game)
 * Harry Potter and the Order of the Phoenix (video game)
 * Harry Potter and the Half-Blood Prince
 * Harry Potter and the Half-Blood Prince (video game)
 * Harry Potter and the Deathly Hallows
 * Lego Harry Potter: Years 1-4

Notes and references
Salle commune de Serpentard