Unseen University was much Bigger on the Inside. Thousands of years as the leading establishment of practical magic in a world where dimensions were largely a matter of chance in any case had left it bulging with places where it shouldn't have places. There were rooms containing rooms which, if you entered them, turned out to contain the room you'd started with, which can be a problem if you are in a conga line.
And because it was so big, it could afford to have an almost unlimited number of staff on the premises. Tenure was automatic, or more accurately, non-existant. You found an empty room, turned up for meals as usual, and generally no-one noticed, although if you were unfortunate you might attract students. And if you looked hard enough in some of the outlying regions of the University, you could find an expert on anything.
Such a picturesque institution, such an integral part of the short but intense history of Kingsmouth. It offers the town a boosted economy, attracts scholars, and bestows academic prestige. Only gifted children are admitted, under very strict entry exams. Students rank at the highest aptitudes of natural science, history and archaeology. The academy is considered one of the premier prep schools in the United States.
Powerful wards lace the outer walls of the school. Chalk outlines form ritual shapes on the blackboard. The shelves are lined with the sort of books that one might have been burnt at the stake for, only a few centuries ago. The young doodle in notebooks, dreaming of bright futures in the secret cabals. Along with mundane curriculum, seasoned magi teach spellcraft, alchemy, and occultism. One faculty member is fond of his yearly demonstrations of cephalonomancy, the art of divination via the boiled head of a donkey. Another scent haunts the halls.
Hogwarts, Hogwarts, Hoggy, Warty Hogwarts, Teach us something please, Whether we be old and bald, Or young with scabby knees, Our heads could do with filling, With some interesting stuff, For now they're bare, and full of air, Dead flies and bits of fluff, So teach us things worth knowing, Bring back what we've forgot, Just do your best, we'll do the rest, And learn until our brains all rot.