Classroom 3C[6], also known as the Defence Against the Dark Arts Classroom,[7] is where Defence Against the Dark Arts class is taught. It is located off of the Serpentine Corridor[1] on the third-floor.[2][3][4][5]


An iron chandelier hung from the ceiling, as well as a dragon's skeleton. On one end of the classroom stands a projector that is activated by magic. There is also a blackboard at the front of the classroom. Several desks and tables can be found in the classroom as well as some sets of large windows. The classroom decoration had several changes over the years, spanning from lots of pictures of Gilderoy Lockhart to tons of skeletons and Shrunken Heads.


Pre- 19081927

Dumbledore teaching Newt

Dumbledore teaching in his classroom.

During his early teaching career, a young Albus Dumbledore occupied this classroom in his capacity as the school's Defence Against the Dark Arts teacher. Throughout much of this time, the classroom was home to a number of curious magical instruments that would one day find their way to the Headmaster's study following Professor Dumbledore's appointment as Head of Hogwarts many years later. A gifted instructor, he made good use of the classroom to, among other things, teach students how to handle dark creatures and how to duel.

1988–1989 school year


Professor Rakepick teaching a class

A world-renowned Curse-Breaker who had been originally enlisted by then Headmaster Albus Dumbledore to help investigate the fabled Cursed Vaults and spent the better part of the previous school year searching for them, Patricia Rakepick accepted the former's offer of employment and became a member of the teaching staff. Filling her classroom with an assortment of objects harking back to her many adventures while working for Gringotts Wizarding Bank, most of them Egyptian in origin, she also used it to house a number of dark artefacts that the students would have to identify and counter as part of their studies. An efficient teacher, her first-hand experience encountering Dark Magic throughout her career enabled her to offer her pupils a comprehensive curriculum, teaching everything from handling dark creatures, learning Defensive spells as well as Martial magic.

1991–1992 school year

Quirinus Quirrell used a temporary classroom because the third-floor corridor was out-of-bounds[8].

1992–1993 school year


Gilderoy Lockhart's pictures in the classroom

When Gilderoy Lockhart was the professor, during the 1992–1993 school year, he decorated the room with his own pictures. During the first lesson, he gave a quiz completely irrelevant to the subject and then released a group of boisterous Cornish Pixies for the class to practise. However, due to his ineptitude and the students' inexperience, Lockhart lost control of them, leading the classroom to be demolished, and Lockhart ultimately fled the room with the rest of the students while irresponsibly ordering Harry Potter, Ronald Weasley and Hermione Granger to clear up his mess. After this one fiasco, Lockhart simply read aloud his supposedly great deeds from his textbooks, sometimes reenacting them and usually dragging Harry to play certain degrading roles. Due to this, the students did not learn anything about defence.

1993–1994 school year


Remus Lupin having his first lesson on Boggart

Remus Lupin taught in the 1993–1994 school year. They studied various Dark Creatures. The first class was hands-on as they battled a Boggart. He also brought a Grindylow to class so that they could observe it. They covered Hinkypunks, Kappas, Red Caps, Vampires and Werewolves in the year. Their final exam was a practical one, an obstacle course with some of the creatures they had studied throughout the year.

1994–1995 school year

Barty Crouch Jr. impersonated as Alastor Moody at Defence Against the Dark Arts class

Barty Crouch teaching his class on the Unforgivable Curses

The 1994–1995 school year brought yet another teacher, Barty Crouch Jr (impersonating Alastor Moody). Although they were only supposed to be learning counter-curses (per Ministry of Magic regulations), Moody covered the Unforgivable Curses, demonstrating with spiders. He put the Imperius Curse on each of them in turn until they could fight it off. Crouch also had a metal jar of worms, as well as a glass container full of bees.

1995–1996 school year

Dolores Umbridge as Defence Against the Dark Arts teacher

Dolores Umbridge treated her class with dull and meaningless materials

In the 1995–1996 school year, Harry and his fellow students were taught by Dolores Umbridge, who taught theory only with no practical training whatsoever. The book used was Defensive Magical Theory and it discourages anyone from ever using any form of offensive magic spells. The chapters of the book instead focus on negotiation and states that there is no good use for a jinx. Umbridge did not allow the students to discuss the material and certainly not to disagree with it. She also forbade any talking without raising hands, and always requested wands to be put away. As one of the methods of retaliation against her tyranny, the moment she enters the classroom she would be greeted by students with ill-coated symptoms of "Umbridge-itis", much to her chagrin.

1996–1997 school year

The 1996–1997 school year brought another teacher, Severus Snape. The class learned about counter-curses, the Patronus Charm, the Unforgivable Curses and Nonverbal Magic. Snape imposed his personality onto the room with rather dark decors: curtains drawn over the windows and the room was lit by candlelight, leading to a gloomier atmosphere, and new, gruesome pictures adorned the walls, many of them showing people in pain, sporting grisly injuries or strangely contorted body parts.

Behind the scenes


Notes and references

Third-floor of Hogwarts Castle
Advanced Arithmancy Studies classroom · Class 34 · Class 72 · Classroom 2E · Classroom 3C · Classroom 3C backrooms · Classroom 3D · Classroom 7A · Classroom off of the Charms corridor · Classroom off of the Gunhilda of Gorsemoor Corridor · Ghoul Studies classroom
Charms corridor · Third-floor corridor · Gunhilda of Gorsemoor Corridor · Serpentine Corridor
Halls and rooms
Armoury · Clock Tower Entrance · Hesperius Hall · Storeroom · Trophy Room · Vastus Vestibule
Other locations
Trophy Secret Passage · Turret Stairwell
Portraits, statues and other artwork
Damara Dodderidge · Drunk Monks · Google Flange · Basil Fronsac · Gunhilda of Gorsemoor · Merwyn the Malicious · Nicholas de Mimsy-Porpington · Valeria Myriadd · Helena Ravenclaw · Brutus Scrimgeour · Temeritus Shanks · Shepherdess · Witch in green · Witch in Pompadour hairstyle · Wizard in black · Wizard in red
Staircase to the courtyard corridor · Staircase to the first-floor corridor · Staircase to the second-floor arcade

Defence Against the Dark Arts (D.A.D.A.)
D.A.D.A. at Hogwarts
Classroom 3C · Temporary Classroom · Hogwarts Turris Magnus · Teacher's Office · Storeroom · Staircase · Lesson Cup · Race Cup · Dumbledore's Army
Arsenius Jigger · Albus Dumbledore · Galatea Merrythought · Patricia Rakepick · Quirinus Quirrell · Gilderoy Lockhart · Remus Lupin · Bartemius Crouch Junior (as Alastor Moody) · Dolores Umbridge · Severus Snape · Amycus Carrow (as Dark Arts teacher)
The Dark Forces: A Guide to Self-Protection · Break with a Banshee · Gadding with Ghouls · Holidays with Hags · Travels with Trolls · Voyages with Vampires · Wanderings with Werewolves · Year with the Yeti · The Essential Defence Against the Dark Arts · Defensive Magical Theory · Dark Arts Defence: Basics for Beginners · Confronting the Faceless · Magical Drafts and Potions
Spells studied at Hogwarts under D.A.D.A.
Aqua Eructo Charm · Boggart-Banishing Spell · Counter-curses · Counter-jinxes · Counter-spells · Curse of the Bogies · Defensive Charms · Densaugeo · Deprimo · Disarming Charm · Ebublio Jinx · Everte Statum · Freezing Spell · Full Body-Bind Curse · Green Sparks · Hex-Breaker· Hex-deflection · Hex Zapper · Homorphus Charm · Impediment Jinx · Knockback Jinx · Knockback Jinx Duo · Lacarnum Inflamari · Melofors Jinx · Nonverbal spells · Orbis Jinx · Patronus Charm · Red Sparks · Reductor Curse · Revulsion Jinx · Salvio hexia · Seize and Pull Charm · Shield Charm · Smokescreen Spell · Snake-Vanishing Spell · Stunning Spell · Tickling Charm · Tongue-Tying Curse · Trip Jinx · Ventus Jinx · Verdimillious Charm · Verdimillious Duo Spell · Verdimillious Tria · Wand-Lighting Charm · Wand-Lighting Charm Duo · Cruciatus Curse · Imperius Curse · Killing Curse
Creatures studied at Hogwarts under D.A.D.A.
Banshee · Boggart · Cornish Pixie · Dementor · Erkling · Ghost · Ghoul · Grindylow · Gytrash · Hag · Hinkypunk · Iguana · Imp · Inferius · Kappa · Nocturnal beasts · Red Cap · Snake · Troll · Vampire · Vampire bat · Werewolf · Yeti · Zombie
Community content is available under CC-BY-SA unless otherwise noted.