The sigma protocol
By: Robert Ludlum
Publisher: Orion
Published: 2001
Place of publication: London
Language: eng
Number of pages: 535
ISBN-13: 9780752841786; 9780752848785; 9780752841892
Subjects: Government investigators; Fiction; Americans; Serial murders; Older men
Description: Published posthumously, Ludlum's last novel is a high-wire drama featuring a worldwide conspiracy hatched by the evil Sigma group.

An American investment banker is on holiday in Switzerland when a former friend tries to kill him. Meanwhile, a US government agent is investigating a string of deaths related to an old OSS file. A dangerous secret is about to be uncovered.