A Sub. of the R.N.R.: A Story of the Great War

In Short

A Sub. of the R.N.R. is a fast-paced naval thriller centered on Terence Aubyn, a young officer serving in the Royal Naval Reserve during the First World War. From the moment he uncovers German espionage aboard a cargo ship to his subsequent exploits on destroyers and submarines, Aubyn faces relentless danger. The narrative is defined by its focus on duty, technical ingenuity, and the "Great War" spirit of constant, stoic vigilance. Its enduring appeal lies in its vivid, authentic portrayal of maritime life under fire during a transformative era of naval warfare.

The Story

The story opens on the SS Saraband, a merchant vessel crippled by mysterious engine-room sabotage. Terence Aubyn, a junior officer, suspects German passengers are behind the interference. His suspicions are confirmed when war is declared, leading to the arrest of a German major, von Eckenhardt, who is carrying sensitive espionage documents. This initial victory is merely the prelude to Aubyn’s active service in the Royal Navy.

As the war intensifies, Aubyn is thrust into the thick of the conflict. He serves on various vessels, including trawlers and destroyers, participating in a dangerous game of luring enemy submarines into traps and countering German raids. The narrative flows through a series of high-stakes missions: a harrowing encounter with a German submarine in the North Sea, the desperate defense of a railway line against saboteurs, and the near-sinking of his own ship after striking a mine. Throughout these trials, Aubyn displays a blend of tactical brilliance and physical courage, often finding himself in situations where the survival of his ship—and his own life—hangs in the balance.

The arc of the story is defined by constant escalation. Aubyn moves from the merchant service to the front lines of the naval war, surviving torpedo attacks, aerial bombardments, and the brutal cold of the North Sea. He encounters the same enemy agents on multiple occasions, turning the conflict into a personal vendetta against German intelligence. The climax arrives during a daring operation where Aubyn, having survived being washed overboard from a wreck, finds himself playing a pivotal role in the defense of a cruiser during an air raid. His quick thinking while under a gas attack allows his ship to evade destruction. The book concludes with a well-earned recognition of his service, as Aubyn is awarded the Distinguished Service Order. He emerges not just as a survivor, but as a seasoned officer ready to return to the sea, embodying the professional and patriotic ideals of his time.

How It Unfolds

The voyage begins Aubyn identifies deliberate sabotage in the engine room of the Saraband just as the war begins, revealing the presence of a German spy. The captain initiates a clandestine struggle to keep the ship moving while navigating the dangers of enemy commerce destroyers.

Naval engagement Transferred to active duty, Aubyn participates in the hazardous work of clearing the North Sea of enemy submarines using decoy trawlers and depth-charge "necklaces." He experiences the cold reality of maritime warfare, witnessing the destruction of hostile vessels while maintaining the Navy's strict code of silence.

Sabotage on the home front The action shifts to the Norfolk coast, where Aubyn stumbles upon an attempt to destroy a railway line. He engages in a tense, solitary duel with an enemy agent, successfully preventing a disaster through sheer nerve and tactical improvisation.

The final crucible After his ship is mined and he is nearly lost to the sea during a shipwreck, Aubyn is pulled back into the service. He serves on a cruiser that comes under attack by German aircraft, where he manages to steer the ship to safety while his superiors are incapacitated by poison gas.

The People

Terence Aubyn serves as the moral and active center of the book. Starting as a competent if somewhat eager junior officer, he matures into a seasoned, stoic professional. His primary desire is to serve the Navy with distinction, and he is hampered not by a lack of ability, but by the overwhelming, asymmetric nature of modern war. By the end, his impulsiveness is tempered by the gravity of his experiences.

Captain Ramshaw is the steady hand of the merchant service. He represents the older generation of seafarers, characterized by his patience and rigid adherence to procedure. He serves as a mentor to Aubyn, teaching him that investigation and caution are just as vital as bravery in the face of an enemy who hides in the shadows.

Major von Eckenhardt acts as the recurring antagonist. He is a sophisticated, ruthless agent of the German Empire. He represents the unseen danger of the war—a man of high social standing who uses his position to coordinate espionage. His presence provides the conflict with a personal dimension, forcing Aubyn to move beyond simple naval duties into the murky world of intelligence.

Jock McBride, the chief engineer of the Saraband, is the personification of Scottish industrial reliability. He is slow to anger but implacable once roused, serving as a foil to the younger, more mobile officers. His presence grounds the story in the mechanical reality of the ship.

In Its Own Voice

"This is a sample from the high-pressure slide valves. They're badly scored. It's nae fair play, for as sure as ma name's Jock McBride, this muck has been put in the gear deliberately."

The chief engineer explains to the captain how the ship was sabotaged by an enemy agent.

"The German cruiser had plunged to the bottom, while half a dozen boats, crammed to their utmost capacity, were laboriously rowing towards the invisible island of Borkum."

The narrator describes the aftermath of a successful torpedo attack by a British submarine.

"I am of the same opinion as Mr. Gilroy, sir."

Aubyn commits to a dangerous, unofficial plan to lure the enemy into a trap.

What It's Really About

At its heart, the book is an argument for the necessity of professional stoicism in the face of total war. It explores the transition from a traditional, gentlemanly understanding of conflict to a modern, technological struggle where the enemy is often invisible—hidden beneath the waves or lurking in the shadows of civilian life. The central question is how an individual preserves their humanity and sense of duty when the conflict is devoid of the grand, face-to-face engagements of the past. It posits that victory is not won solely by grand displays of heroism, but through the accumulation of small, often unrecognized tasks, technical expertise, and the willingness to endure the harsh, unglamorous realities of maritime duty.

Why Read It Today

Readers who enjoy the gritty, technical side of nautical history will find much to admire here. The book captures the specific atmosphere of 1914–1918 naval life, where the threat of the U-boat turned the sea into a place of constant, low-level dread. It is an honest, if period-specific, look at how the Great War was internalized by those serving on the front lines.

Modern readers should be prepared for the earnest, sometimes didactic tone of the early 20th-century juvenile adventure genre. The dialogue, particularly in the rendering of regional dialects like that of Jock McBride, requires a bit of patience, and the attitudes toward the "Fatherland" and the enemy reflect the intense nationalistic fervor of the era. However, the pacing is excellent. There is no bloat; the story moves from one incident to the next with a brisk efficiency that echoes the urgency of the sailors it portrays. What stays with you is the cold, salt-sprayed feeling of the North Sea and the quiet dignity of the characters, who accept that their lives are a small price to pay for the "heritage of Nelson." It is a sincere, unpretentious slice of history that values the "long watch" over the quick victory.