When Carruthers joins his friend Arthur Davies on his yachtDulcibella, he is expecting a pleasant sailing holiday in the BalticSea. But the holiday turns into an adventure of a different kind. Heand Davies soon find themselves sailing in the stormy waters of theNorth Sea, exploring the channels and sandbanks around the GermanFrisian Islands, and looking for a secret - a secret that could meangreat danger for England. Erskine Childers' novel, published in 1903,was the first great modern spy story, and is still as exciting to read today as it was a hundred years ago.