It’s one of the largest collections of books on magecraft. Although the Atlas Institute is said to be even larger.

[ But no one got in there without an invitation, and those weren’t easy to come by. He smiled, though, leading Nida up a flight of stairs and further down a row of tall shelves with the odd ladder here and there to reach the tops. The further they went, the dustier the old books looked and the fewer students were roaming. Which meant, when they came to a series of study desks, they didn’t have to worry too much about people approaching without it being obvious, given how deserted the area was. ]

We’ll make this our base. People don’t tend to come this far into the library without a good reason.