The Paris Vendetta — Steve Berry

Former Justice Department operative Cotton Malone wakes to find an intruder in his Copenhagen bookshop: an American Secret Service agent with assassins on his heels. Narrowly surviving a ferocious firefight, the two journey to the secluded estate of Malone's friend Henrik Thorvaldsen. The wily Danish tycoon has uncovered the insidious plans of the Paris Club, a cabal of multimillionaires bent on manipulating the global economy. But Thorvaldsen also harbors a hidden agenda--a vendetta--that will force Malone to choose between friend and country, past and present. Starting in Denmark, moving to England, and ending up in the storied streets and cathedrals of Paris, Malone is forced to match wits with a terrorist for hire and to plunge into a desperate hunt for Napoleon's legendary treasure, lost for two hundred years. It's a breathless game of duplicity and death, all to claim a prize of untold value. But at what cost?