After presenting my latest beat board to a group of peers and tutor it was suggested that the Librarian is on screen constantly and this is not needed. The key image for the group was the Librarian throwing books over his shoulder (top right below) as this really showed his disdain for them. I could cut the scenes where he is interacting with the books and have instead him fall asleep in his chair and his part is over in the film. The Library then becomes the main focus at the end of the film with the books and stories coming to life, enhancing the irony that the Librarian hates stories and is missing such a spectacle.

Next step: I want to get these ideas into a work in progress animatic as I now feel confident in the first half of my story, but I want to set out timing and get a feel for some foley alongside it. I will then work on the Library scenes at al later stage.

Here it is, my second and improved (hopefully) beat board!

The Librarian is seen selecting books off of a shelf before dropping them carelessly to the floor, then dragging them to his desk whiere he impatiently flicks through them before throwing them over his shoulder. He pauses looking old and tired, then slowly opens up a new book. This one starts to narrate a story to him with the pages morphing into sculptural images, it is beautiful, the Librarian seems entranced. His expression changes and he angrily crushes the story being told. He falls asleep in his chair, only to awake to the library  being covered in alive stories alike to what was in the books. He carefully closes the book he was reading and places it neatly back on the shelf where he found it.

I've finally managed to pull a working story out of my brain and put it into beat board format.
The idea is that the librarian is reading a book which is narrating stories and images to him, and then tells a bit of his own tragic story which he gets angry about so slams the book shut. He is then seen in his library being tormented by the books (all in his head) and after a brief pause attempts another read at his own story.