My dad once said to me, "You give a lot of books three stars." I do.
This volume branches out more from the Holmes canon. It develops these particular characters. Nora even gets a whole chapter to herself. I wasn't a huge fan of her backstory. The story itself is quite progressive in many ways even though it's set in Victorian England, so it was odd to me that g***y was used to describe Nora and the people who raised her.
There's also a crossover with another manga I've never heard of (and now can't remember). Without any knowledge of those characters and their stories I was still able to understand that part of the casebook just fine. So it seemed kind of strange, but didn't ruin my reading experience.