
Free summary
The Boy Allies with the Terror of the Seas
The Last Shot of Submarine D-16
Clair W. (Clair Wallace) Hayes (b. 1887)
Two courageous young officers navigate the treacherous waters of World War I, pushing their submarine into the heart of enemy territory for a final, decisive strike.
In Short
This work is a quintessential example of early twentieth-century juvenile adventure fiction, designed to stir the patriotic spirit during the height of the Great War. It follows the daring exploits of an American and a Briton serving aboard a British submarine, the D-16. Through a series of fast-paced missions—from raiding German fleets to escaping Russian entanglements and infiltrating the Dardanelles—the narrative emphasizes individual bravery and international camaraderie. Its legacy lies in its role as a representative artifact of wartime propaganda, capturing the period’s idealistic, high-stakes view of naval combat.
The Story
The narrative opens in the tense, claustrophobic environment of the British submarine D-16, where American teenager Frank Chadwick and his British counterpart, Jack Templeton, serve as officers under the command of Lord Hastings. The two friends represent a bridge between the Allied powers, possessing a natural rapport that fuels their tactical ingenuity. Their mission is one of constant infiltration; they are the "eyes" of the fleet, sent to probe German naval defenses, navigate the Kiel Canal, and disrupt enemy supply lines.
The story progresses through a series of tactical successes that quickly descend into personal peril. After sinking a major German vessel, the crew discovers a traitor hiding in their own ranks, a discovery that forces a high-stakes search of the vessel’s confined compartments. Shortly after, the submarine is captured, leading to a daring escape. The conflict takes the protagonists from the North Sea into the Baltic, where they gain an audience with the Russian Czar, only to be embroiled in a political conspiracy that threatens Jack’s life. Throughout these episodes, the pacing is relentlessly forward-moving, with little time given to the quiet or the mundane.
As the war effort pivots toward the Dardanelles, the D-16 finds itself tasked with increasingly impossible reconnaissance. Lord Hastings, now suffering from a combat-related injury, refuses to relinquish command, even as the mission demands the ultimate sacrifice. In the final act, the D-16 is struck by enemy fire while attempting to navigate the straits, causing the vessel to become hopelessly waterlogged and trapped on the sea floor. Rather than surrender, the crew faces the reality of their situation with stoic resolve. Recognizing that the submarine cannot be saved, Lord Hastings orchestrates a desperate plan: the crew will evacuate through the torpedo tubes while he remains behind to ensure their success. The story concludes with the tragic, heroic finality of the commander’s decision, as he sends his young protégés to safety, choosing to go down with his vessel to deliver one last, decisive shot against the enemy.
How It Unfolds
The voyage begins The D-16 operates in the shadows, waiting between fleets to engage the enemy at close range. Through the periscope, the protagonists witness the immense scale of naval warfare and the vulnerability of the surface ships.
A traitor within The crew experiences an unexpected, violent change in buoyancy, signaling that a stowaway or saboteur has compromised the ship. The subsequent search reveals a dangerous intruder who must be subdued before he can damage the vessel’s critical systems.
Crossing the Kiel Canal The officers take a German prisoner who claims to know the way through the heavily guarded, mine-strewn canal. Suspicion defines this leg of the journey, as Frank and Jack must constantly weigh the prisoner's directions against their own instincts for survival.
Petrograd and politics The crew shifts their focus to the Baltic, where they interact with high-ranking Russian officials and navigate the dangerous currents of court intrigue. A mistaken identity leads to a harrowing arrest, requiring a bold intervention at the palace to secure a release.
The Dardanelles and the end The final mission brings the submarine into the heart of the Turkish defenses, where the vessel is crippled by a direct hit. Lord Hastings initiates a selfless evacuation protocol, ensuring his officers survive while he faces the final fate of his command alone.
The People
Frank Chadwick is the American representative, defined by his impulsive bravery and his unshakable belief in his country’s naval superiority. He serves as the primary foil to the more cautious, though equally daring, British officers. Jack Templeton is his loyal counterpart, providing the cool-headed analysis necessary to keep their vessel operational. Their friendship serves as the emotional bedrock of the book, showing how the war brings together men from different nations under a common cause.
Lord Hastings is the stern, paternal figure of the story. As the commander of the D-16, he represents the seasoned professional who bears the weight of the war’s moral and tactical demands. He is not a man of many words; his authority is absolute, and his dedication to his crew is matched only by his hatred for the "cruelties" he perceives in the German war machine. Over the course of the book, he evolves from a distant commander into a selfless martyr, his final decision to sacrifice himself for his men serving as the defining moment of his character. The German prisoner serves as a critical antagonist within the ship's walls, representing the "foe" who is eventually forced to acknowledge the tenacity of his captors.
In Its Own Voice
"The D-16 leaped ahead, and at the distance of half a mile, rose slowly to the surface."
During a night engagement, the submarine demonstrates its tactical agility by striking a battleship and escaping before the enemy can identify the source of the attack.
"I am the commander of this vessel," he said grimly, "and when I give an order I want it obeyed."
Even while suffering from a significant injury, Lord Hastings maintains absolute control over his ship, demonstrating the rigid discipline that guides the crew through the war's final stages.
"The torpedo tubes," said Lord Hastings quietly. "All but one of us can be shot to the surface by means of the torpedo tubes."
As the submarine lies crippled on the sea floor, the commander devises a final, sacrificial plan to ensure the survival of his young officers.
What It's Really About
At its heart, the book is a study of the "virtue of the offensive," exploring the idea that victory belongs to those who act first and take the greatest risks. It posits that moral superiority—specifically that of the Allies—is inherently linked to technical ingenuity and physical courage. The narrative explores the tension between duty and individual agency, constantly asking what a soldier owes his commander and what a commander owes his crew. It is an argument for the necessity of total commitment to a cause, suggesting that in times of global crisis, the only way to ensure the safety of the world is to face the enemy directly, regardless of the personal cost.
Why Read It Today
Readers today will find this book to be a fascinating, if sometimes rigid, window into the mindset of 1915. Those who enjoy historical fiction or early twentieth-century adventure literature will appreciate the relentless pacing and the authentic, period-specific descriptions of submarine warfare. It captures the "stiff upper lip" ethos and the fervent nationalism that characterized the era, offering a glimpse into how the Great War was presented to young readers at the time.
However, a modern reader must be prepared for the limitations of the genre. The dialogue is often heavily laden with the period’s specific slang and a blunt, unnuanced view of national character. The narrative does not pause for deep psychological introspection; instead, it favors quick action, clear moral binaries, and rapid plot developments. The length and episodic structure may feel repetitive to those accustomed to modern, tighter storytelling. Despite these aspects, the book remains a valuable, albeit dated, historical document. It carries the weight of a time when the world seemed to be changing irrevocably, and it captures a sense of earnest, if naive, heroism that remains distinct to its time. For those interested in how literature helped shape the public consciousness during a global conflict, it is a compelling piece of history.
This summary was written by AI (gemini-3.1-flash-lite) on 2026-09-02 and is a guide to the book, not a replacement for it — it can be incomplete or wrong. The book itself is public domain. Copyright & AI disclosure · Report a problem





