01451cam a2200289 4500 335488122 TxAuBib 20170101120000.0 021007s2002||||||||||||||||||||||||eng|u 9780312982515 pbk. 0312982518 pbk. (OCoLC)50742585 TxAuBib Ludlum, Robert, 1927-2001. The Sigma protocol / Robert Ludlum. St. Martin's Paperbacks ed. New York : St. Martin's Press, 2002. 662 p. ; 18 cm. American investment banker Ben Hartman is on a vacation trip to Switzerland when a childhood friend approaches himandpromptly tries to kill him. Narrowly surviving the attempt on his life, Ben discovers that the body of his former friend—as well as all evidence of the confrontation—has disappeared. But this is just a beginning. Anna Navarro, a U.S. government agent, is sent to surreptitiously look into a string of deaths and murders of old men around the world. The only thing the men have in common is an OSS file marked with the code word SIGMA. 20170101. Americans Switzerland Fiction. Government investigators Fiction. Serial murders Fiction. Older men Fiction. Switzerland Fiction. Suspense fiction.