Nightingale's Lament

The book seamlessly combines chilling supernatural elements with an intriguing whodunit. I'm curious whether the author envisioned this mix from the start or let it develop naturally.

The mood was so immersive and eerie—did the author rely on specific techniques or inspirations to create that haunting vibe throughout?

The nightingale seemed to carry deep significance—I'm wondering what led to choosing this particular motif and how it ties into the story's themes.