A gripping and heartfelt war story from Britain's best-loved children's author, Michael Morpurgo. Turned away by his own son, Cessie's long-lost grandfather finds himself in the place he fears most - a nursing home called Shangri-La. Only Cessie loves him and is determined to help him escape and unravel the truth of his past.

A past that comes to him only in glimpses - a lifeboat, a tin of condensed milk, a terrifying night on the beaches of Dunkirk in World War II ...