A serial killer stalks the agents of Department Z in a rip-roaring thriller from the Edgar Award–winning author who sold eighty million books worldwide. London, 1941. In the unending darkness of the London Blackout, an assassin slinks through the night, striking down victims with deadly accuracy. His targets are agents, killed while on watch. Department Z is baffled. Who is the silent killer, why is he targeting them, and what is their secret...

The thrilling Department Z series continues as an assassination attempt leads to political turmoil-from the author who sold eighty million books worldwide. Agent Gordon Craigie faces a crisis of international proportions when an attempted assassination of a Russian diplomat at a top-level international conference in London threatens negotiations. Craigie and the Department Z team must work to ensure the safety of all the delegates whilst investigating...

Department Z faces its biggest test when the organization is threatened by an enemy on the inside-from the author who sold eighty million books worldwide. Charles Corliss, son of a murdered agent from Department Z, seems like the perfect recruit for the ultra-secret spy organization. But when things start going seriously wrong, the agents begin to suspect this charming young man is not as loyal as he first seemed. Filled with hate for the organization...

A thrilling mystery set against the backdrop of the Blitz in WWII England, by an Edgar Award–winning author. England, 1941. Terror from the Germans' constant bombing is spreading through the nation, as homes, cities, and morale are reduced to little more than rubble. Worn down and defeated, British spirit teeters on a delicate seesaw. When an insidious enemy strikes from within, the government is blindsided. Vital food supplies are destroyed...

A terrifying international plot threatens the agents of Britain's Department Z in this tale of suspense from an Edgar Award–winning author. Leopold Gorman studies the World Economic Conference with interest-and then picks five rich and powerful men to bring his plan to fruition. If any one of them shows reluctance to fall in with his scheme, he'll be dead within the hour... Gordon Craigie, chief of British intelligence, is the only thing standing...

International blackmailers are scheming to rupture relations between Britain and the United States-but Bill Loftus of Department Z is hot on their trail . . . With America's most powerful industrialists, British peers of the realm, and agents of unknown power all entangled in a conspiracy, international safety is at risk. But unraveling this global plot quickly becomes personal for Bill Loftus when the blackmailers murder someone dear to him. As things...

Marius Krotz is notorious for his ability to cause a stir. A former revolutionary turned right-hand-man to the king of a small European country, he is feared as much for his unscrupulous manner as for his dangerous past. He's planning something big, and intelligence agencies across Europe have him in their sights. Department Z is on the case, led by the infamous Arran twins and new recruit Jim Burke, and this time they're pushed to their limits. Department...

A suspenseful tale of murder and espionage in wartime England. David Garth has been off in America, giving speeches on behalf of Britain's Ministry of Propaganda. Upon his return, he's surprised to receive an unsigned invitation to an address in Wimbledon . . . and even more surprised when he's approached by two agents of Department Z. Mark and Mike Errol, agents of British intelligence's secret detective squad, request Garth's assistance on a mission...

An American gangster brings his bloody business to 1930s Britain in this suspenseful thriller from an Edgar Award–winning author. Amateur boxer Martin Storm's visit to New York seemed like it was a success. That is, until his car was machine-gunned and the police had to smuggle him out of the country... But Storm finds no safety at home, either, and the search begins to find the man who is hunting him down. He soon discovers that he has become...

The adventure that brought two intrepid cousins into the service of the department of British intelligence known as Z... Desperate to escape the suffocating heat of London, cousins Mark and Mike Errol set out for Richmond for a relaxing boat ride. Little did they know their peaceful afternoon would be violently interrupted by a Department Z mission that would completely change their lives. Quickly recruited into the secret agency, the Errols embark...