He ignores the books for now. They'll still be there later. He opens a workroom, finds it occupied by someone making hand signs, and tries another. This one is empty. He lays out his supplies and gets to work.

The first thing is to detach the broken parts of the wings, leaving only intact timbers. He cuts away sections of canvas to work the snapped pieces free. The little bone-carved mechanisms for folding the wings and controlling the little flaps at the end are mostly intact, so he extracts those too.

This will take a few hours, and the workrooms don't have locks.