Sobel was nearly as famous for his only work of fiction, the 1973 book, For Want of a Nail. This book is an alternate history in which Burgoyne won the Battle of Saratoga during the American Revolutionary War. This work detailed the history of an alternate timeline, complete with footnotes. Sobel had authored or co-authored several actual textbooks. For Want of a Nail was republished in 1997 and won a special achievement Sidewise Award for Alternate History that year.
