The Great Office Mystery

Sexton Blake tracks down a gang who have stolen secrets from a rocket site.

A detective saves a clerk from a gang who tie him to a clock-operated gun.

A crook poses as a Lord to rob a merchant and holds a detective captive in his cellar.

A Count catches a detective posing as a foreign war minister and hangs him over Beach Head with a fuse.

A detective saves his boy assistant from a bank swindler after escaping a fire by overhead cable.

A girl frames a drunkard for a gem theft. The detective is saved from the crook's launch by a boy's 60-foot dive.

A detective saves the kidnapped daughter of an inventor murdered for his formula.

A Sexton Blake mystery.

A private detective and his young assistant solve crimes.

Third release in the 'Sexton Blake' series of short crime dramas.

Fourth release in the 'Sexton Blake' series of short crime dramas.

Sixth release in the 'Sexton Blake' series of short crime dramas.