The Mourner — Richard Stark

The Mourner is a story of convergence -- of cultures and of guys with guns. Hot on the trail of a statue stolen from a fifteenth-century French tomb, Parker enters a world of eccentric art collectors, greedy foreign officials, and shady KGB agents. Hired by a shifty dame who has something he needs, Parker will find out just who intends to bury whom -- and who he needs to kill to finish the job.