The Lady of Mystery

A member of British Intelligence assumes a fictitious criminal identity and allows himself to be caught, imprisoned, and freed in order to infiltrate a spy organization and expose a traitor; only, someone finds him out and exposes him to the gang...

Federal agent Alexandra Barnes believes that Catherine Petersen is a serial killer who marries rich men and then murders them for their money. But since Catherine is seemingly a master of disguise and has multiple identities, Alexandra can't prove anything with conventional detective work. With no other option, she goes undercover, pursuing the same man as Catherine, and hoping that Catherine will slip up and reveal her true identity.

After learning that the death of his wife was not an accident, a former CIA Station Chief is forced back into the espionage underworld, teaming up with an adversary to unravel a conspiracy that challenges everything he thought he knew.

After two British Secret Intelligence Service agents are murdered at the hands of a cryptic neo-Nazi group known as Phoenix, the suave agent Quiller is sent to Berlin to investigate.

Two women—Diana, a flamboyant and ruthless thief, and Evie, a seemingly innocent young woman with a troubled past—become embroiled in a series of horrific murders on the island of Malta.

A fledgling actress is lured to a remote mansion for a screen-test, soon discovering she is actually a prisoner in the middle of a blackmail plot.

A Texas Ranger is recruited by British Intelligence to track down a dangerous terrorist and stop him from attacking London.

Cold War spy Greville Wynne and his Russian source try to put an end to the Cuban Missile Crisis.

A deranged man hides in the attic of a new house and becomes obsessed with the unsuspecting family that moves in.

A group of top female agents from American, British, Chinese, Colombian, and German government agencies are drawn together to try and stop an organization from acquiring a deadly weapon to send the world into chaos.