If you’re anything like me, you’ve read Pride and Prejudice so many times that you can practically recite Mr. Collins’s proposal while brushing your teeth. (A hazardous activity. The line about “your portion is unhappily so small” almost made me choke on toothpaste once.)

But here’s the thing: Jane Austen’s most famous couple, Elizabeth Bennet and Fitzwilliam Darcy, are not trapped forever in 1811 Hertfordshire. Oh no. They’ve been time-traveling, globe-hopping, fantasy world visiting, and occas...