The Sigma Protocol is the last book of adventure-drenched thriller writer, Robert Ludlum. Ben Hartman, a young business man from America goes on a holiday in Europe. One of his old school friend with a gang of killers attack Ben. Suddenly, Ben gets caught in a web of plots and suspense. He finds that his twin brother, who had died years ago, was aware of some kind of secret. His investigations make Ben aware of a secret organisation called Sigma. Meanwhile, Anna, an agent of US investigation agency, is on a mission to investigate a series of deaths in Europe. The thing that connects both of them is Sigma. Ben and Anna together decide to join forces and keep digging till they unravel the truth behind Sigma. Filled with intricate plotting and mystery, read it for a fast-paced gripping thriller.
