'Nothing ever happens in the winter holidays'Or so Nancy thinks. Then the lake ices over completely and the Swallows and Amazons, along with Dick and Dorothea - 'the D's' - plan a race to find the North Pole. How will they reach it if they can't sail? By sledges of course! But when a blizzard blows up and there is a mix up about signals, the D's disappear into the Arctic night. Disaster looms. Can the Swallows and Amazons save their friends?Or so Nancy thinks. Then the lake ices over completely and the Swallows and Amazons, along with Dick and Dorothea - 'the D's' - plan a race to find the North Pole. How will they reach it if they can't sail? By sledges of course! But when a blizzard blows up and there is a mix up about signals, the D's disappear into the Arctic night. Disaster looms. Can the Swallows and Amazons save their friends?