
A wealthy magnate lies dead in a sealed room, yet no killer can be found. A tenacious detective must untangle a web of malice woven through the city's telephone lines to reveal the impossible truth.
In Short
This mystery is a quintessential product of 1918, blending the gritty atmosphere of urban pulp fiction with the emerging fascination for modern technology. When Montgomery Stockbridge is murdered within his locked library, the investigation falls to the stout and clever Triggy Drew. The narrative balances a classic "locked-room" puzzle with a search for a culprit who weaponizes the telephone to commit a crime from afar. It has endured as a curious relic, capturing the anxieties of a world rapidly becoming interconnected and vulnerable to unseen threats.
The Story
The story begins in a New York mansion on Fifth Avenue, a bastion of opulence where the wealthy Montgomery Stockbridge lives. Despite his riches, Stockbridge is a man marked for death by vengeful enemies from his past. He hires Detective Triggy Drew to protect him, fearing an unknown assailant. Drew, accompanied by his assistant Delaney, inspects the mansion, finding no structural weaknesses—no trapdoors, no hidden panels—that would allow an intruder to reach the magnate. After taking elaborate precautions, including locking and bolting the heavy library door from the inside, Drew leaves the mansion in the hands of guards.
The following morning, the library remains sealed, yet Stockbridge is found dead. The room is a physical paradox: a man has been shot, yet the windows are locked, the door is secured, and no weapon is present. Police Commissioner Fosdick arrives, dismissing the matter as a simple suicide, but Drew knows better. He suspects a "material agency" was used, a way to deliver a lethal blow without physical presence. As he digs deeper, he encounters a mysterious "trouble-man"—an electrician who had been seen working on the mansion’s phone lines—and discovers links to a criminal associate named Morphy, whom Stockbridge helped send to prison years earlier.
The investigation soon pivots to the safety of Stockbridge's heir, the beautiful Loris. Drew believes the killer is still stalking her, using the telephone to terrorize his victims. The narrative follows a tense chase through the city, tracking the movements of the suspicious electrician and unraveling the connection between the prisoner, the telephone network, and the murder.
Ultimately, the "trouble-man" is apprehended. Under pressure, he reveals his role in the killing, explaining how he used his technical access to the mansion's wires to facilitate the crime. The murderer, an accomplice of the imprisoned Morphy, admits to the deed, ending the mystery. With the threat neutralized, Loris is left in the care of her fiancé, the soldier Harry Nichols. Drew and Delaney, exhausted but successful, close the case, leaving the mansion behind, satisfied that justice has been served through logic and persistence rather than the crude methods of the police.
How It Unfolds
The summons The mystery begins when a mysterious voice calls Detective Drew’s office, requesting his services for the wealthy Montgomery Stockbridge. Drew arrives at the mansion to find the magnate paranoid and surrounded by luxury, yet strangely vulnerable.
The locked room Drew secures the library with extreme measures, convinced that an intruder intends to strike. Despite his precautions, the morning brings the discovery of Stockbridge’s body, sparking a frantic search for the impossible killer.
The investigation Drew rejects the official theory of suicide, focusing instead on the role of the telephone and the mysterious electrician seen near the house. He gathers clues from the mansion, the city’s streets, and the prison system to build a case against the invisible enemy.
The closing net As the detective tracks the movements of the suspect, he learns that the killer is still threatening the heir, Loris Stockbridge. Drew races to protect her, engaging in a high-stakes pursuit that culminates in the capture of the "trouble-man."
The resolution The culprit is forced to confess, explaining how he used electrical wires and technical knowledge to commit the murder from a distance. The case concludes as the detective restores safety to the household, allowing the survivors to find peace.
The People
Triggy Drew, the detective, is the story’s anchor. At forty-one, he is stout and meticulous, having moved past the reliance on circumstantial evidence that once led him to convict an innocent man. He is driven by a desire for order and a genuine protective instinct toward his client, Loris.
Loris Stockbridge, the magnate's heir, is the emotional center of the story. She is portrayed as a delicate, wealthy socialite who finds herself in peril after her father’s death. Her vulnerability draws both the detective’s protection and the affection of her fiancé.
Harry Nichols, a young officer and Loris's fiancé, represents steady, quiet strength. He serves as a foil to the more theatrical characters, acting as a protector to Loris and a confidant to Drew, ultimately standing by her as the danger passes.
Montgomery Stockbridge, the victim, is a proud, isolated millionaire who knows his past has caught up with him. He is defined by his wealth and the enemies he made during his rise to power, serving as the catalyst for the entire mystery.
The "Trouble-man," or the murderer, is a shadowy figure who hides behind his role as an electrician. Motivated by loyalty to the imprisoned Morphy, he represents the new, terrifying power of technology used for malevolent ends.
In Its Own Voice
The detective notes the strange power of the modern world to intrude into private spaces:
"Out from this palace at the close of a winter's day, there flashed the tiny pulsations of voice-induced currents of electricity which reached the telephone-central, were plugged upon the proper underground paper-insulated wires and entered, even as the voice was speaking, the cloud-hung office of Detective Drew."
The detective reflects on the necessity of ignoring past errors to focus on the present:
"It was soon after the conviction of the innocent man, that Drew gave up circumstantial evidence and got down to hard work, wherein the evidence accumulated was tempered with some degree of fact and common sense."
What It's Really About
At its core, the book explores the tension between traditional detective work and the rapid onset of the modern, technological age. It asks how the law can keep up when a killer no longer needs to be physically present to commit a crime, but can strike through the "whispering wires" of the telephone system. The story portrays the city as a place of extreme contrast, where wealth and poverty, crime and romance, and ancient greed and modern science intersect. It is fundamentally a story about accountability: the idea that every secret, no matter how carefully transmitted over a wire or hidden behind a locked door, will eventually be unearthed by a mind dedicated to facts.
Why Read It Today
Readers who enjoy the atmosphere of early 20th-century urban mysteries will find this book an engaging time capsule. It feels like stepping into a cold, snowy New York of 1918, complete with Fifth Avenue mansions, slangy detectives, and a sense of encroaching modernity. It is a quick, straightforward read that values pacing and mystery over complex character studies.
However, modern readers should be prepared for the period-specific attitudes, particularly the sometimes paternalistic way the detective views his female client, and the occasional reliance on racialized descriptions and dated stereotypes typical of the era’s pulp fiction. The writing is brisk and sometimes melodramatic, focusing on the mechanical puzzle of the crime rather than psychological depth. If you appreciate the "locked-room" trope or are interested in how early detective fiction incorporated the telephone as a mysterious, almost supernatural tool of crime, you will likely enjoy the way Drew navigates this world. What stays with you is the eerie, rhythmic way the story treats the telephone as a conduit for danger, a theme that feels surprisingly prescient even a century later. It is not high literature, but it is a solid, atmospheric piece of detective fiction that rewards those who want to see how the genre grappled with the dawn of the electronic age.
This summary was written by AI (gemini-3.1-flash-lite) on 2026-08-31 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





