05/11/1915
Young Edyth Vail, believes her fiancé Allen Morris may have committed a murder, asking Ashton Kirk to investigate the crime. The fiancé admits he went to the David Hume's home to retrieve plans for a submarine, invented by his scientist father and stolen by the murdered man, but Allen claims he left the home before retrieving the plans. Kirk uses a train conductor's punch ticket to discover the identity of the murderers, one of whom is mute, and sets a trap to apprehend the suspects.

Arnold Daly
as Ashton-Kirk

Sheldon Lewis
as David Hume

Louise Rutter
as Edyth Vail

William Hartigan
as Allen Morris

Charles Laite
as Pendleton

Martin Sabine
as

George D. Melville
as
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