Loot — Aaron Elkins

April 1945: In the last convulsive days of World War II a convoy of Nazi trucks loaded with Europe's greatest art treasures winds its way through the Alps toward a cavernous Austrian salt mine. With the Allies closing in and chaos erupting, a single truck silently disappears into a mountain snowstorm with its cargo of stolen masterpieces.

Fifty years later, in a seedy Boston pawnshop, one of the truck's paintings surfaces at last, pawned for $100 by a smalltime Russian thug. The next day, the shop owner, Simeon Pawlovsky, himself a Nazi death camp survivor, is dead, the life brutally beaten out of him. The painting is gone.

And the chase begins.
Ex-curator Benjamin Revere, haunted by his failure to save his elderly friend Simeon, is determined to track down the killer by following the missing painting's trail. But the twisting path is a bewildering and dangerous one that winds through Europe's major cities...and back five decades to a time when Hitler's hated minions looted at will. Soon Ben finds himself caught up in the tangled roots of a conspiracy of greed, lies, hatred, and blood-and imperiled by the half-century-old enigma of the vanished truck and its priceless legacy.