Go down to darkness (SHOGAKUKAN MYSTERY) (2003) ISBN: 4093563632

The mysterious and perilous environment really heightened the suspense. I'm curious whether the author based it on real locations or created it purely from imagination.

While I appreciated getting to know the characters, I found myself wondering if that was a deliberate choice to build tension or just natural storytelling.

The story seamlessly combined mystery with exploration, but I'm curious about whether the focus was always on the crime or if the adventure was meant to take center stage.