It's 1940 and the Nazis are invading Nick's beloved home, the British Channel Islands. So Nick takes to the skies: He has discovered an old World War One fighter plane in an abandoned barn. Determined to learn to fly, he is soon risking life and limb to photography armed German minelayers and patrol boats, and executing incredibly perilous bombing raids over Nazi airfields at night. Meanwhile, the evil pirate Captain Billy Blood, still desperate to acquire Nick's time machine, returns to Greybeard Islands, kidnaps Nick's sister, Kate, and transports her back to Port Royal, Jamaica, in the year 1781.--From publisher's description.