This sequel to "20,000 Leagues Under The Sea" doesn't advertise itself as such. Most of the book concerns the efforts of a group of hot-air balloon castaways in the south Pacific ocean attempting to use modern knowledge in order to survive in near-desert-island conditions. "Robinson Crusoe" (Defoe, 1719) started a trend of survival tales that lasts in some respects to this day and "Island" (1874) is Verne's contribution to that body of work. In my estimate, no film so far has done this book justice.