Michael Chabon’s The Final Solution.
“The longer this story settles into my mind, the better and better it is – both as a story, but also technically. Chabon’s writing is of such a high caliber, he can outshine his own plotting, characters, etc. Not showing off, mind you – just so very good that it can make the writing appear, instead of the story. Perfect in length, and a great read for lifelong fans of the greatest Consulting Detective. I’d recommend to Sherlock Holmes fans, bird people, World War II buffs, and Writers with a capital W.”
My review from 2011