That's right! It's The Wrong Sword.
Granted, it's a smallish category. But that still means I am on the SAME AMAZON FRONT PAGE as books by Ben Aaronovitch, Diana Wynne Jones, Neil Gaiman, and - yes! - Terry Pratchett. (When you're up there with the Brits in Humorous Fantasy, you're automatically in the Big Leagues.)
And since most browsing shoppers only check out the first page of these lists, being #18 out of #20 is a Big Deal.