Accessible both from the Potions Laboratory and the classroom, this small room stands between them and thus has two doors symmetrically positioned. More than four people in the room at a time would feel suffocating. Most of the shelves are open to students, who are welcome to use them rationally. At one corner of the room, though, there is a windowpaned section and no matter how hard you pull it, it won't open or break despite the charms you perform. It is obviously the private supplies of Professor Culloden and those other professors who wish to use them, and you will get in trouble if you try too hard without notifying Professor himself.

Ingredients on open shelves

• Armadillo bile
• Frozen Ashwinder eggs
• asphodel
• bezoar
• belladonna
• bicorn parts
• Billywig parts
• black beetle parts
• bubotuber
• Bundimun secretion
• Cabbage, Chinese Chomping
• caterpillars
• cockroaches
• crocodile parts
• daisy roots
• flobberworm parts
• fluxweed
• frog parts
• ginger root
• Glumbumble parts
• horned slugs
• horned toads
• knotgrass
• lacewing flies
• leeches
• leech juice
• lionfish parts
• lovage
• mandrake
• moonstone
• Murtlap
• nettles
• Newt parts
• peppermint
• pomegranate
• porcupine parts
• puffer-fish parts
• rat parts
• salamander parts
• scarab beetles
• scurvy-grass
• shrivelfig, Abyssinian
• snake parts
• sneezewort
• sopophorous
• spiders
• tubeworms
• valerian
• wormwood

Locked-away ingredients

• aconite
• Acromantula venom
• Alihotsy leaves
• Boomslang parts
• Doxy eggs
• dragon eggs
• dragon parts
• Erumpent parts
• Gillyweed
• Graphorn parts
• Flesh Eating Slug Slime
• hellebore
• Jobberknoll parts
• monkshood
• Re'em blood
• runespoor eggs
• unicorn parts
• wolfsbane