Let Sense Be Dumb (гет)

"Sherlock doesn't like it when she gets kidnapped and tied up and knocked about. When she's in danger, a large portion of his magnificent brain eats itself alive with worrying for her, and that process consumes a great deal more energy than converting proteins and carbohydrates into energy."
A sequel to "The Skeleton Winter", in which Joanna Watson is still mad as a hatter. Only these days, it's not working for her quite as well as it used to.
Genderswap casefic loosely based on the AC Doyle story "A Case of Identity".