According to Wikipedia, during the 1920s and 30s Maurice Dekobra was probably the best-known French writer in the world. His most famous book was
La Madone des Sleepings (The Madonna of the Sleeping Cars), which
according to its Amazon blurb is "one of the first and most influential spy novels of the twentieth century."
I hadn't heard of it. This is probably because (again according to Wikipedia) by the 21st Century Dekobra had become a "total unknown."
In 1945, while Dekobra was still near the height of his fame, he drew up an unusual will. He left his entire library of 17,000 books as well as his art collection to the town of Papeete in Tahiti. He did this because he figured that big cities such as Paris and London would probably soon be destroyed by nuclear bombs. But Papeete might survive. Therefore, so might his books.
Dekobra ended up living until 1973. I haven't been able to find out if, by that time, he had changed his will, or if Papeete ever got his books.
Los Angeles Times - Oct 3, 1945
Dekobra in 1965 holding some of his books
Category: Death | Inheritance and Wills | Books