This note contains spoilers for the book.

Reportedly, he hated really badly to have to bring back his most famous creation. Oh well; all the better for us. I'm reading this courtesy of Project Gutenberg.

There's one here that depends on fingerprint evidence. Not only that -- it depends on falsely placed fingerprint evidence. They'd already figured out you could use a fingerprint in a wax seal or some such to make a fake print. What gave it away is that it was placed on a wall Holmes had already examined, so he knew it appeared after the crime.

In this one, Watson has given up his practice and returned to living in Baker Street. I guess something must have happened to his wife, also, though it's not mentioned in this book that I can remember. It's always fun to visit an old friend like this.

I'm amused at the idea of Holmes retiring to raise bees.