When Paul sent me this book he said it wasn't at all environmental, but that doesn't mean he can't write about nature, this is lovely description from sunonhead (origins):
Sunonhead shades his eyes from the river glare and jiggles his big toe to summon fishy fish, blind to his moonwife winding her way through dappled eucalypt and melaleuca scented shade. A dingo slinks past her on his way to the den and an echidna bristles.
The whole book is a must read for anyone who is already a fan of Paul's blog. If you're not yet a fan, you can start reading his blog here. I've said more about The Puzzle Box on Over Forty Shades, you can read about it here.