T.A. Willberg Books in Order

An apprentice detective works beneath 1950s London at a secret investigative agency. When a colleague is accused of murdering a fellow employee, Marion must untangle concealed loyalties and wartime secrets to discover who within the organization is responsible.

Assigned to investigate a London killer who marks victims with a rose, Marion also receives warnings about an untrustworthy recruit. When another investigator dies, she must determine whether her anonymous informant offers protection or a further threat.

Marion investigates the disappearance of a friend's girlfriend after threats from a gang leader. A dead raven delivered to the agency recalls her mother's death, connecting the case to a family mystery she has never resolved.