Story summary

ジャック・オブ・ジャッジメントのあらすじ

著者：エドガー・ウォーレス

読了8分
10 parts
音声は近日公開

A masked man in black silk crashes a blackmailers' meeting, and a playing card serves as his ominous calling card.

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ジャック・オブ・ジャッジメントの概要

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読書時間: 約4 h 35 min3 h 40 min fast, 5 h 30 min slow
所要時間: 66,000語
ライブラリ内の難易度: 標準 longer sentences, everyday words
初版刊行年: 1920by エドガー・ウォーレス

Reading time at 238 words a minute (fast 300, slow 200). 古典を読むのにかかる時間 · 更新日 22 October 2026

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ジャック・オブ・ジャッジメント in short

Jack O' Judgment follows a powerful blackmailer, Colonel Dan Boundary, whom the law cannot touch. He buys firms for a fraction of their worth by holding scandal over their owners, and his gang uses poison and kidnapping when it must. Stafford King hunts him in court and in the street, but his proof keeps dying.

What ジャック・オブ・ジャッジメント is about

A young man lies dead in a Lambeth gutter on a snowy night. In his pocket are a tin of cocaine and a single playing card, the Jack of Clubs. Nobody is ever charged. Three months later a soiled Jack of Clubs arrives at Colonel Dan Boundary's palatial apartment in Albemarle Place.

Jack O' Judgment is a fast crime thriller by Edgar Wallace. Colonel Dan Boundary buys businesses for a twentieth of their worth by holding scandal over their owners. Against him stand a detective, a stage mimic named Maisie White, and a masked figure in black silk. You get a villain who talks like a kindly uncle, and one question: who hides behind the white handkerchief?

対象読者. Readers who enjoy a cunning villain, a masked avenger and a chase through lamplit London will find plenty here. Anyone who likes to guess a hidden identity will feel at home.

The story in 10 parts

Key idea 1 · free to read
A Playing Card Haunts a Powerful Man
Colonel Dan Boundary lives in a grand flat in Albemarle Place and wants for nothing. One morning a letter marked private holds only a soiled Knave of Clubs with a name along its edge. The words are Jack o' Judgment. The colonel tosses it away, but he cannot toss away the face it calls to mind.
That face belongs to Snow Gregory, a gambler who once worked for him. Gregory was shot dead in a Lambeth gutter with the same card on his body. A coroner's jury blamed persons unknown.
More cards arrive. So the colonel asks Stafford King, the detective who has spent three years trying to break his gang, to hear his complaint. He calls himself a law-abiding citizen libeled for twenty years. King lists the bargains in his past, and the colonel only smiles and says there is no law against a bargain.
The law is watching Boundary, while someone else has already begun to judge him. A single card has begun to crack his calm face.
2
Jack Walks Into the Gang's Meeting
On a rainy night Pinto Silva, a polished Portuguese with a white rose in his buttonhole, waits at the stage door of the Orpheum Music Hall.
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3
A Witness Dies Before He Can Speak
Stafford King arrests the colonel on the platform at Victoria station on a charge of blackmail and conspiracy.
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4
The Colonel's Method Is Blackmail Made Respectable
The colonel explains his trade over dinner to John Crotin, a Yorkshire mill owner.
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5
Maisie Joins the Fight Against the Gang
Maisie White leaves the stage.
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6
Maisie Vanishes and Solomon White Comes Home
A week of quiet ends in the dark of Doughty Street.
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7
A Rescue That Comes With a Promise
Maisie wakes in a house that calls itself a nursing home.
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8
Yorkshire Brings Traps, Masks and a Tragedy
The colonel sees that his gang is shaking.
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9
Law Without Justice and Justice Without Law
Sir Stanley Belcom lays out the problem to his department heads.
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10
A Story Told in Masks, Cards and Voices
Wallace tells the story in short chapters, often ending on a revelation, a sudden threat or a dramatic reversal.
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Characters, plot and themes

Main characters

Colonel Dan Boundary A heavy, soft-spoken schemer who buys businesses cheap by threatening scandal, and who wants to keep his fortune and his freedom.
Stafford King A calm, gray-eyed chief of the Criminal Intelligence Department who wants to break the Boundary Gang and protect Maisie.
Maisie White A stage mimic whose father belongs to a gang, she wants to clear his name and undo the harm the gang has caused.
Jack o' Judgment A masked figure in black silk who mocks the gang and wants to ruin Boundary and his men one by one.
Pinto Silva A vain, handsome Portuguese in the colonel's circle who wants Maisie and wants above all to save himself.
Lollie Marsh A baby-faced decoy who lures men for the colonel, but who longs for a decent life.
Swell Crewe A once-polished gentleman turned thief who brought a young drug user into the gang and wants a way out.
Sir Stanley Belcom The smiling First Commissioner of Criminal Intelligence, who suspects the colonel and trusts his own odd theories.

How it ends (spoiler)

The colonel fakes his death in a burning flat, leaving a murdered servant in his place, and flees in disguise as a carpenter on a ship. At a Falmouth inn Jack o' Judgment finds him and says the colonel destroyed his only son, Snow Gregory. Both men are shot, and the colonel dies. The masked man is Sir Stanley Belcom, who dies in Stafford's arms. Crewe and Lollie escape by plane and later marry, and Stafford marries Maisie.

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『ジャック・オブ・ジャッジメント』についての質問

What is Jack O' Judgment about?

It is a crime thriller about Colonel Dan Boundary, a blackmailer who builds a fortune by buying businesses cheap. A masked figure called Jack o' Judgment begins to attack the gang, while Stafford King of Scotland Yard tries to prove the colonel's crimes.

Who is Jack o' Judgment?

The name belongs to a masked figure in black silk who uses a Jack of Clubs as his calling card. Characters guess at many identities. The book plays with this question and settles it only in its last chapters.

What does the Knave of Clubs card mean?

It is the playing card found on the body of Snow Gregory, a young man shot dead in a Lambeth gutter. Jack o' Judgment uses it as a calling card and a sign that a judgment has been made.

Who wrote Jack O' Judgment and when?

Edgar Wallace, a prolific British thriller writer who died in 1932, wrote it. It is a work of fiction, set in London in the early twentieth century, though the blackmail methods it describes feel real.

Is Jack O' Judgment easy to read?

Yes, in the sense that it moves briskly. Chapters are short, most end on a surprise, and the language is plain. The scenes shift between stage doors, courtrooms and country houses, which keeps the pace lively.

この版を引用します

Wallace, Edgar. Jack O' Judgment. Library of Alexandria, 2026, libraryofalexandria.com/products/jack-o-judgment.

Wallace, E. (2026). Jack O' Judgment. Library of Alexandria. https://libraryofalexandria.com/products/jack-o-judgment (Original work published 1920)

Wallace, Edgar. Jack O' Judgment. Library of Alexandria, 2026. https://libraryofalexandria.com/products/jack-o-judgment.

@book{wallace2026jack,
  author = {Wallace, Edgar},
  title = {Jack O' Judgment},
  publisher = {Library of Alexandria},
  year = {2026},
  url = {https://libraryofalexandria.com/products/jack-o-judgment},
  note = {First published 1920}
}