Rooms, chambers, and floors
Gryffindor

McGonagall’s study

This part of McGonagall’s quarters is located on the first floor (PS15).

Harry and Hermione were brought to McGonagall's study by Filch when he caught them out of bed after curfew. They had been atop the Astronomy Tower bidding farewell to Norbert and had forgotten the Invisibility Cloak in their elation to be rid of the baby dragon (PS15).

Commentary

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Sources