In this sequel to the prize-winning French language young reader novel Un rebelle en sous-marin, the sea of myth and legend beckons young Alfred once again. With his loyal crew of a dog and a seagull by his side, Alfred sails across the Atlantic in his homemade submarine and enters the Mediterranean in search of the fabled lost Greek island of Atlantis. Ziegfried, genius and master builder of the sub, cautions Alfred to be careful and practical. Yet Sheba, friend and island enchantress, whispers to Alfred: "Trust your feelings." Indeed, Alfred must trust his premonitions many times on this ambitious and far-reaching adventure: from a daring rescue of drowning fishermen, to a skirmish between the Canadian coastguard and Spanish fishing trawlers; from escaping an exploding WWII sea mine to turning the chase on bumbling pirates. Alfred's submarine voyage finally brings him closer and closer to the legendary island of Atlantis until one moonless night he finds himself a little too close for comfort.