Captain Antifer
Author: first_name: Jules
last_name: Verne
Language: English
Year: 1895

“No good deed goes Unpunished”, as the saying goes. 
A wealthy Egyptian leaves millions of buried treasure on an island and sends the location to the Captain that saved him while fleeing certain death from Napoleon Bonaparte. However the Egyptian does not leave the entire location: only the Latitude. The Longitude will be made known to him in time.
Decades pass before a shifty notary from Alexandria arrives with the necessary Longitude, and now the lust for greed has passed from Captain to Son.