Winter Holiday

'You know what it's like. Dark at teatime and sleeping indoors: 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 signa...