Sidney Reilly influenced world history through acts of extraordinary courage and sheer audacity. He performed great services for the British government. He was a master spy, a brilliant con man, a charmer, and a cad who lived on his wits and thrived on danger, using women shamelessly and killing where necessary--and unnecessary. Sidney Reilly is one of the most fascinating spies of the twentieth century, yet he remains one of the most enigmatic--until now. Introducing new evidence gathered from an extraordinary range of sources, Andrew Cook tells the full story of Sidney Reilly's life. He proves conclusively who Reilly was, where he came from and the truth behind his most daring exploits.