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The Riddle of the Sands · Chapter

XXV: I Double Back explained

Carruthers departs from Davies and travels by train through northern Germany, reflecting on Davies' theories about a German coastal defense scheme and Dollmann's espionage.

What happens

Carruthers departs from Davies and travels by train through northern Germany, reflecting on Davies' theories about a German coastal defense scheme and Dollmann's espionage. He studies maps and notes, connecting canals, the railway loop, and the Benser Tief to a possible invasion plan. Arriving in Esens, he pieces together clues about the strategic use of the Ems–Jade Canal and the role of the islands and channels.

Themes in this chapter

  • Espionage and Secrecy

    Carruthers deciphers hidden clues about a German defense scheme and Dollmann's spying activities.

  • Military Preparedness

    The chapter explores the strategic use of canals, railways, and islands for coastal defense and potential invasion.

  • Deception and Appearance

    Carruthers reflects on how von Brüning tricked him at Bensersiel and the hidden meanings behind ordinary features like canals and streams.

Characters to notice

  • Carruthers

    Narrator; travels alone, studies maps, and assembles clues about the German defense scheme.

  • Arthur H. Davies

    Seen briefly at departure; gives Carruthers a scrap of paper with notes on the journey and theories.

  • Herr Böhme

    Travels with Carruthers on the ferry and train; Carruthers suspects his involvement in the scheme.

  • Dollmann

    Mentioned as a spy for English plans and as active in island development.

  • Commander von Brüning

    Recalled for tricking Carruthers at Bensersiel and for his role in the naval part of the scheme.

Key passages

  • He spoke of a German scheme of coast defence, and in the next breath of Dollmann spying for English plans in the event of war with Germany, and there he left the matter; but what sort of plans?

    Davies mentioned a German coastal defense plan and Dollmann's espionage for England, but Carruthers is left wondering what specific plans are involved.

    Carruthers puzzles over the vague hints from Davies.

  • I remembered that page in the North Sea Pilot where the Ems–Jade Canal is referred to as deep enough to carry gunboats, and as used for that strategic purpose between Wilhelmshaven and Emden, along the base, that is, of the Frisian peninsula.

    Carruthers recalls that the North Sea Pilot describes the Ems–Jade Canal as deep enough for gunboats and used strategically along the Frisian peninsula.

    Carruthers connects the canal to Davies' theory.

  • I reviewed every circumstance of that day at Bensersiel, and boiled to think how von Brüning had tricked me.

    Carruthers angrily reconsiders how von Brüning deceived him during their visit to Bensersiel.

    Carruthers feels outmaneuvered by von Brüning.

The Riddle of the Sands — XXV: I Double Back Explained