chunk: Ayrton, made a prisoner, offers to trade his knowledge of Captain Grant in exchange for being abandoned on a desert island instead of being surrendered to the British authorities. The Duncan sets sail for the Tabor Island, which, by sheer luck, turns out to be Captain Grant's shelter. They leave Ayrton in his place to live among the beasts and regain his humanity.
  Ayrton reappears in Verne's later novel, L'Île mystérieuse (The Mysterious Island, 1874).