Let's Bond Together

A hint. A file. A search of the Archives, somebody stole $50 million in bearer bonds. A grandfather, dead. A father, dead. Two sisters, where? Will the two brothers go looking? Should they? Jason and Myles have enough money that they need not worry, but it could be fun. They found the sisters and recovered the bonds, now where to cash them in? With the sisters they went to Florida, where they get a boat and together sailed the Caribbean from one bank to another until the Caymans, the climax. Than the revenge. Can they survive?