The four Walker children never meant to go to sea. They had promisedtheir mother to stay safely in the harbour, and to be home on Fridayin time for tea. But there they are in someone else´s boat, driftingout to sea in a thick fog. When the fog lifts, they can turn round and sail back to the harbour. But then comes the wind and the storm,driving them out even further across the cold North Sea . . .
