El misterio de las siete esferas

The London setting adds such a unique atmosphere to the story. I'm curious whether she based it on a real place or created it from her imagination.

The scenes with the aristocratic characters felt quite detailed, but I wondered if that was necessary for the mystery or if it affected the suspense.

I loved trying to piece everything together, but some of the clues felt subtle. Which moments made you feel like you were finally onto the solution?