Cambridge put out a worldwide appeal for any information that would lead to the recovery of these historical documents, and on March 9, 2022, they were anonymously returned. The notebooks had been wrapped in saran wrap and left in a pink gift bag outside the Cambridge Librarian’s office with a note reading “Librarian / Happy Easter / X.” The notebooks are in good condition. Find out more about these notebooks and their decades-long disappearance at the Cambridge University website. — The New York Times (@nytimes) April 5, 2022 Find more news and stories of interest from the book world in Breaking in Books.