A boy and a bear go to sea, equipped with a suitcase, a comic book and a ukulele. They are only travelling a short distance and it really shouldn't take long. But then their boat encounters 'unforeseeable anomalies'...

Faced with turbulent stormy seas, a terrifying sea monster and the rank remains of The Very Last Sandwich, the odds soon become pitted against our unlikely heroes. Will the Harriet, their trusted vessel, withstand the violent lashings of the salty waves? And will anyone ever answer their message in a bottle?

Brilliantly funny and tender, this beautiful book maps the growth of a truly memorable friendship and tells the story of how, when all becomes lost, the most unexpected joys can be found.