Marine Mail delivered the letter. A bottle was found in the belly of the killed shark asking for help. But there is a problem: the coordinates are blurred with water. Only the latitude is known, where the brave captain in trouble is waiting for help. But... when it is necessary to save a person, any obstacles are insignificant. What can resist courage, determination and knowledge? High mountains? Wild animals? Rough seas? Man-eating savages? People, real people, can overcome any obstacles to help the brave captain Grant's children regain their father. This edition reproduces a complete set of 175 illustrations by the famous French artist Edouard Rioux.