Morderstwa w Somerset

The dual-layer narrative adds a unique twist, but I wonder what inspired the choice to tell the story this way and how it affects the suspense.

The book shifts between the detective story and the behind-the-scenes of writing it, which is fascinating but sometimes tricky to follow. What was others' experience with this approach?

Anthony Horowitz's craft seems so deliberate—I'm curious about what themes or ideas he wanted to explore through this mystery.