Pachyderme by Frederik Peeters is a mysterious tale, not particularly linear - although there is a story line to follow. It's in full colour, and visually very interesting, with comical characters and strange happenings. The passages work best for me when there is little or no dialogue: pure brilliant storytelling in pictures. Don't look for a straight-forward story here - it's the unexpected aspects that slip between the panels that make this an unusual and surprising read. And it challenges what to expect from a graphic novel: always a good thing!
