The Sigma Protocol
Robert Ludlum
American investment banker Ben Hartman is on vacation in Switzerland when
he is approached by a childhood friend who promptly tries to kill
him. The attempts on his life are just beginning. Together with Anna
Navarro, a U.S. government agent, they try to uncover the secrets
long-buried under the name Sigma - truths that threaten everything they
know.
This summary is courtesy of McNaughton Books