The Slytherins live in here. This is where all the goings on of Slytherins happen and all the sinister things that go along with the Slytherin name are tlked about and carried out. Thier common room is swamped by an eerie green glow and everything in the common room is emerald green.

This is where all the stange fumes come from, so block your nose and walk into the depths of the castle. Professor Slughorn teaches the esteemed art of potion making here, and you need to learn it f you want to pass those OWLs or those NEWTs.

The Hogwarts Kitchens, with its army of friendly and ever-so-helpful houselves, makes itself available to whomever might go wandering hungry for a snack. The perfect minight hangout.