The Riddle of the Sands

Carruthers, a bored young Foreign Office clerk, accepts an unpromising invitation to join an acquaintance for a sailing holiday in the Baltic and the Frisian Islands.

He arrives expecting comfort and finds a small, spartan converted lifeboat and a friend who is evasive about why he wants company. What begins as a tedious cruise becomes an investigation of what is being built among the sandbanks.

Davies is shabby, socially awkward, an exceptional sailor and sincerely patriotic. Carruthers is polished, snobbish, initially contemptuous and gradually shamed into usefulness.

The friendship is the novel's real subject, and Carruthers's slow revision of his own values is handled with more care than the espionage plot.

The plot uncovers a secret. The book is about one man reconsidering what he admires.

Devmark’s reading — not a quotation from the book

The navigation is exhaustively detailed: tides, soundings, channels, anchorages and the specific hazards of drying sandbanks in fog.

Childers was a serious sailor and the book was written from cruises he had made. The detail is authentic to the point of difficulty, and much of the suspense is generated by whether a passage can be made before the tide turns.

The shallow, shifting waters between the Dutch and German coasts are navigable only by small craft with local knowledge, which is exactly what makes the discovery plausible.

The geography is the plot. What the pair uncover could only be concealed in such a place, and only found by people small and persistent enough to get in.

Childers wrote it as advocacy. He believed Britain was unprepared for German naval ambition and wanted the North Sea coast taken seriously, and the novel includes an epilogue arguing the case directly.

It had measurable effect on public debate about naval preparedness, which is a rare thing for a thriller and part of why it is remembered.

It belongs to a substantial late-Victorian and Edwardian genre of future-war fiction, written to alarm a public about a coming continental enemy. Almost all of it is now unreadable, and most of it was unreadable at the time.

Childers's book survived because it subordinates the polemic to a convincing physical adventure and to two characters worth spending time with, where its contemporaries generally did the reverse and produced pamphlets with plots attached.

The amateur who stumbles into a state secret, the documentary apparatus of maps and appendices, and the insistence on procedural accuracy all begin here in recognisable form.

Ambler, Buchan, Household and le Carré each inherit something from it, and its claim to be the first modern spy novel rests on that combination rather than on any single element.

The book is presented as an edited account with a preface, charts, tide tables and footnotes, and the maps are meant to be consulted.

This is an early instance of the documentary technique that Forsyth and Clancy later industrialised — realism asserted by the presence of paperwork.

The nautical vocabulary is dense and largely unglossed, and readers without sailing experience will lose the thread of some manoeuvres.

The novel survives this better than expected, because the tension usually rests on time and visibility rather than on technique, but it is the main obstacle to a modern reader.

The author's later life is unusually dramatic: he ran guns for the Irish Volunteers in a private yacht, served in the Royal Navy in the First World War, took the republican side in the Irish Civil War and was executed by the Free State in 1922.

The biography is not required to read the book, but it does make the novel's convictions about small boats and national loyalty read differently.

It is slow by modern standards and slowest in its first third, where very little happens except an unhappy guest adjusting to an uncomfortable boat.

The payoff is that when the investigation begins, the reader has an unusually concrete sense of the vessel, the water and what is physically possible.

It is out of copyright and widely available, and readers who like sailing, fog, tide tables and slowly ripening dread will find that it holds up remarkably well for a book first published in 1903.

Anyone wanting espionage in the later sense should know that there is no tradecraft in it at all. There is no service, no handler and no training. The secret is found by two amateurs with a lead line and too much time.