The legacy of Hogwarts flies out of the bookshelf division mission introduction
Talk to Kresida. Talk to her in the central hall.
Collect Cresida's flight books from the library.
After talking to her, turn left and go down the stairs, enter the red door on the right and enter the library.
There are five books to collect. Three of them are on the first floor and two are on the first floor.
The first book (first floor)
It flies around the room. To collect it, just look at its direction and use Accio.
The second book and the third book (first floor)
They are flying between the shelves in the library. You can look at them through the shelf with the manifestation spell because they emit blue light. To collect them, just look at its direction and use Accio.
The fourth and fifth books (first floor)
They are flying between the bookshelves on the first floor of the library. You can look at them through the shelf with the manifestation spell because they emit blue light. To collect them, just look at its direction and use Accio.
Dialogue with Cressida
Once you have collected them all, go back to the place where you first talked to Cresida, and then talk to her.
This ended the flying frame mission in Hogwarts' legacy.