王国の鍵. 4 (戦場の木曜日)

The book has such a playful tone but also moments of real tension. I wonder how the author strived to keep that balance engaging for middle-grade readers.

The magic system and the different worlds are so richly imagined but still easy to follow. I'm curious if that was a deliberate choice to make the fantasy approachable.

The setting feels like a character itself, full of secrets and wonder. I wonder what inspired the author to craft this unique universe.