Kafka on the shore

[itstito]

I finished this book two days back, and I enjoyed it immensely. However, I still haven't figured the story out completely. There's a riddle in there somewhere. Any interpretations? Nakata, especially, and how he ties into Kafka's story. And whats the weird creature that comes out of his mouth after he's dead!?

 

[itstito]

The lyrics of the song 'Kafka on the Shore' seems to be the key somehow.