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Ginny Weasley: "You can't come down here! No, sorry, you're going to have to go round by the swivelling staircase, someone's let off Garrotting Gas just along here -"
Surly Hogwarts student: "I can't see no gas."
Ginny Weasley: "That's because it's colourless! But if you want to walk through it, carry on, then we'll have your body as proof for the next idiot who doesn't believe us."
Ginny Weasley claiming to dissenting passer-bys about the gas[src]

A colourless gas,[1] Garrotting Gas was produced as a result of the creation of a certain potion.[3] Anyone exposed to the gas would find themselves choking and as a result, suffocate,[4] as the gas caught people by the neck if they passed through it.[5]

History[]

Garrotting Gas

A bottle of Garrotting Gas

In the 1987–1988 school year at Hogwarts School of Witchcraft and Wizardry, Severus Snape gave a flask of Garroting Gas to Jacob's sibling to be used as a defensive weapon against Patricia Rakepick.[6]

Patricia Rakepick choking on Garrotting Gas HM530

Patricia Rakepick choking on Garrotting Gas

Jacob's sibling later used it in the Portrait Vault at the end of the 1988–1989 school year against Rakepick, after she attacked them and their fellow students in the vault.[7]

During the 1989–1990 school year at Hogwarts, Professor Snape taught sixth-year Potions students how to brew Garrotting Gas.[2]

Fred and George Weasley were planning to release some in Hogwarts in 1996, during Dolores Umbridge's tyrannical tenure as Headmistress, but they left the school before they had a chance. Their sister, Ginny, merely had to mention it to prevent students from traversing down a school corridor, which allowed Harry Potter and Hermione Granger to break into Umbridge's office to use her fireplace for communication.[1]

Etymology[]

A garrotte is a wiry weapon that can be used to strangle a victim, and also may refer to the action of "ripping through" something.

Appearances[]

Notes and references[]

Potions (class)
Wideye-or-awakening-potion
Potioneers
Arsenius Jigger · Baruffio · Bella Navarro · Bilius Finbok · Blossom Degrasse · Dai Ryusaki · Damocles Belby · Dorothy Sprottle · Erica Stainwright · Fatimah Lawang · Fleamont Potter · Gethsemane Prickle · Gilderoy Lockhart · Glossy · Glover Hipworth · Golpalott · Gregory the Smarmy · Gunhilda de Gorsemoor · Hector Dagworth-Granger · Hesper Starkey · Jalal Sehmi · J. Pippin · Laverne de Montmorency · Libatius Borage · Linfred of Stinchcombe · Mulpepper · Mundungus Fletcher · Nicolas Flamel · Phineas Bourne · Priya Treadwell · Quintia McQuoid · Regulus Moonshine · Rogue alchemist · Rubens Winikus · Sacharissa Tugwood · Skower · Tilden Toots · Dr Ubbly · Vindictus Viridian · Zenith Xeep · Zygmunt Budge
Potions at Hogwarts
Cauldron cupboard · Dungeon Five · Potions basement · Potions Classroom · Potions Club · Potions Staircase · Potion Master's office · Potions Storeroom
Professors Bartholomew · Horace Slughorn · Severus Snape · Swoopstikes · Unnamed Professor (16th century) · Aesop Sharp (19th century) · Unnamed Professor (2021)
Textbooks A Collection of Above Three Hundred Receipts in Cookery, Physick, and Surgery · Advanced Potion-Making · Ingredient Encyclopedia · Magical Drafts and Potions · One Thousand Magical Herbs and Fungi
Potions studied at Hogwarts
Ageing Potion · Amortentia · Antidotes · Antidote to Common Poisons · Antidote to garish pink blended poison · Antidote to Uncommon Poisons · Antidote to Veritaserum · Babbling Beverage · Befuddlement Draught · Calming Draught · Cheese-Based Potions · Confusing Concoction · Cough Potion · Cure for Boils · Deflating Draught · Doxycide · Draught of Living Death · Draught of Peace · Elixir to Induce Euphoria · Erumpent Potion · Essence of Insanity · Everlasting Elixirs · Felix Felicis · Fire Protection Potion · Forgetfulness Potion · The Famous French Method for the Bite of a Mad Dog · Garish pink blended poison · Garrotting Gas · Girding Potion · Hair-Raising Potion · Herbicide Potion · Hiccoughing Solution · Invigoration Draught · Laughing Potion · Mandrake Restorative Draught · Memory Potion · Pepperup Potion · Polyjuice Potion · Pompion Potion · Potion for Dreamless Sleep · Rat Tonic · Regerminating Potion · Scintillation Solution · Shrinking Solution · Skele-Gro · Strength Potion · Strengthening Solution · Swelling Solution · Undetectable Poisons · Veritaserum · Weedosoros · Wideye Potion · Wiggenweld Potion · Wit-Sharpening Potion · Wolfsbane Potion · Wound-Cleaning Potion
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