Сочиняйте сами (Иностранная литература. Классика детектива)

The title suggests reader involvement or choice, which is intriguing in a detective narrative. I'm curious whether the author intended this as an invitation for the reader to solve the case alongside the detective.

While I enjoyed the buildup, the middle chapters felt like they were dragging a bit. Was this a deliberate choice to build suspense or just a pacing decision?

The idea of involving the reader in solving the mystery is unique. I wonder what inspired the decision to present it this way and how it influenced the storytelling.