When the head of the French DST, Philip Rostand, an old
friend of Jordan Fletcher, comes to FSI and provides information
that he and his counterpart at MI5 have credible intelligence that
Group 45, due to past setbacks, is in financial difficulty and may be
using their new nemesis, “The Broker”, to gain a treasure trove in
the Caribbean, Jake and Mike are sent to investigate.

When their contact winds up dead on the island of St. Bart’s,
they once again find themselves involved in the hunt for a
long-lost treasure.

Both hunters and hunted, they search for clues in the archives of
Robert Louis Stevenson, the exploits of an accidental pirate,
and the Leeward Islands, racing operatives of “The Broker”
to find the very real “treasure island”.