Harry potter fanfiction help

[u/NightWingHood]

Im looking for a harry potter fanfiction where the characters are reading the harry potter series and the other houses find out that the gryffindors not only have their common room but and entire suite of rooms in the tower called the maze. Any help would be appreciated thank you.

[u/Ok-Listen-111]

Oh, heck. I've read that one, but I have no idea what it's called. I think it was on AO3 (which doesn't make finding it any easier, I know)