According to this version of the anecdote, when stationed in Berlin, Knorozov came across the National Library while it was ablaze. Somehow Knorozov managed to retrieve from the burning library a book, which remarkably enough turned out to be a rare edition containing reproductions of the three Maya codices which were then known—the Dresden, Madrid and Paris codices. Knorozov is said to have taken this book back with him to Moscow at the end of the war, where its examination would form the basis for his later pioneering research into the Maya script.