Captains Courageous by Rudyard Kipling
Harvey Cheyne is the over-indulged son of a millionaire. When he falls overboard from an ocean liner her is rescued by a Portuguese fisherman and, initially against his will, joins the crew of the We're Here for a summer. Through the medium of an exciting adventure story, Captains Courageous (1897) deals with a boy who, like Mowgli in The Jungle Book, is thrown into an entirely alien environment.