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The Ponson Case · Chapter

A Stern Chase explained

Inspector Tanner travels to Yelverton to arrest William Douglas for the murder of Sir William Ponson.

What happens

Inspector Tanner travels to Yelverton to arrest William Douglas for the murder of Sir William Ponson. Douglas tricks Tanner by pretending to be his brother John and escapes in a car. Tanner finds boots matching the crime scene marks, organizes a police search, and eventually tracks Douglas to Lisbon, where he arrests him on the steamship Chrysostom and brings him back to London.

Themes in this chapter

  • Justice and Investigation

    Inspector Tanner's methodical pursuit of William Douglas, from tracing the suspect to Yelverton to the eventual arrest in Lisbon, exemplifies the investigative process and the pursuit of justice.

  • Deception and Identity

    William Douglas's clever ruse of impersonating his brother John to escape Tanner highlights the theme of deception and the fluidity of identity.

  • Secrecy and Blackmail

    The secretive escape and the hidden boots that link Douglas to the crime scene underscore the themes of secrecy and the hidden evidence that drives the investigation.

Characters to notice

  • Inspector Tanner

    Travels to Yelverton to arrest William Douglas, is tricked by Douglas's escape, discovers incriminating boots, organizes a police search, and eventually arrests Douglas in Lisbon.

  • William Douglas

    The suspect who escapes from his cottage by impersonating his brother John, drives away in a car, and is later arrested by Tanner on a steamer in Lisbon.

  • John Dale

    Mentioned as the brother of William Douglas who lives at Myrtle Cottage and is used by William to create a false identity during the escape.

Key passages

  • When the 10:30 a.m. Riviera express pulled out of Paddington next morning, Inspector Tanner was occupying a corner seat in one of its first-class compartments.

    The next morning, Inspector Tanner boarded the 10:30 Riviera express from Paddington, sitting in a first-class corner seat.

    Describes the start of Tanner's journey to arrest William Douglas.

  • He had determined that if his victim could not account satisfactorily for his actions on the night of the murder, or if his boots fitted the marks on the Cranshaw River bank, no other course would be possible.

    Tanner decided that if Douglas couldn't explain his whereabouts on the murder night or if his boots matched the footprints at the river, he would have no choice but to arrest him.

    Outlines Tanner's criteria for making the arrest.

  • It was now evident to him that William Douglas had recognised him approaching the house, and had invented a brother to enable him to hold the Inspector’s attention while he bolted.

    Tanner realized that William Douglas had spotted him coming and pretended to be his own brother to distract Tanner while he escaped.

    Reveals the trick Douglas used to evade capture.

  • Drawing from his pocket a tracing of the marks on the Cranshaw River bank, he eagerly compared it with the soles. Those of the first pair he took up corresponded!

    Tanner took out a copy of the footprints from the riverbank and compared them to the boots; the first pair matched exactly.

    Confirms the boots as evidence linking Douglas to the crime scene.

  • William Douglas or Walter Donnell,' Tanner said solemnly, 'I arrest you on a charge of being concerned in the death of the late Sir William Ponson, of Luce Manor, Halford.'

    Tanner formally arrested Douglas, using both his aliases, for involvement in Sir William Ponson's murder.

    The moment of arrest on the steamer in Lisbon.