Writing for Jules Verne

Here’s a thought experiment for you. It’s 1868, and your close friend, Jules Verne, is deathly ill. Since you’re an author too, he’s asked you to write a novel in his stead. All he’s got is a concept—a ship that travels underwater—and a title: Twenty Thousand Leagues Under the Sea. You cannot refuse your friend. What will your novel be like?

Remember, nobody has ever written a novel involving a submarine. Yours will be the first. You jot down some plot ideas:

A single nation is the fir...