All chapters

The Man Who Knew · Chapter

A Letter in the Grate explained

Saul Arthur Mann visits Frank Merrill at Grimm's Hotel, relieved to find him there after mistaking a look-alike in Camden Town.

What happens

Saul Arthur Mann visits Frank Merrill at Grimm's Hotel, relieved to find him there after mistaking a look-alike in Camden Town. The next morning, Mann receives a photograph from Constable Wiseman identifying the girl seen at 69 Flowerton Road as Sergeant Smith's daughter. Mann and Frank go to the house, but the girl has fled. In the grate, Mann finds a torn letter instructing her to leave London, written in Jasper Cole's handwriting.

Themes in this chapter

  • Identity and Deception

    Frank Merrill's double in Camden Town creates confusion and raises questions about impersonation.

  • Secrecy and Knowledge

    The torn letter and the girl's sudden disappearance underscore hidden information and covert instructions.

Characters to notice

  • Frank Merrill

    Found at his flat in Grimm's Hotel, dressing for dinner; denies being in Camden Town; agrees to accompany Mann to 69 Flowerton Road.

  • Saul Arthur Mann

    Visits Frank after mistaking his double; receives photograph from Constable Wiseman; leads investigation at 69 Flowerton Road and discovers the torn letter.

  • The Girl

    Identified as Sergeant Smith's daughter via photograph; has fled 69 Flowerton Road; her relationship with Jasper Cole is noted.

  • Jasper Cole

    Handwriting identified on the torn letter instructing the girl to leave London; previously associated with the girl.

  • Constable Wiseman

    Sent a photograph of the girl to Saul Arthur Mann, aiding the identification.

Key passages

  • I could have sworn that I saw you less than half an hour ago in Camden Town.

    Saul Arthur Mann insists he saw Frank in Camden Town, though Frank denies it.

    Highlights the theme of mistaken identity and Frank's double.

  • You must get out of London. Saul Arthur Mann saw you both today. Go to the old place and await instructions.

    The torn letter orders the girl to leave London because Mann spotted her and Frank's double.

    Reveals Jasper Cole's involvement and the urgency of concealment.