Three men – one fat, one tall, one thin – meet outside London to discuss stealing the wealth of a nation, no matter what horror they wreak in the process. The plan is put into action and the death toll rises and rises. It is down to Department Z’s Gordon Craigie to put a stop to these powerful men. His only clue, however, is a mysterious diamond-shaped card. Yet it is on this small thing that he stakes the Department’s reputation and the life of his top agent, Toby Arran. Will this be something Craigie will regret?