Duplicate decision #2730

Land of Terror

Approved Unique 95% confidence · llm:qwen3.5:9b

Why this decision was made

The books have different titles ('Land of Terror' vs 'The Angel of Terror'), different authors (Edgar Rice Burroughs vs Edgar Wallace), and completely different plot descriptions. The high title similarity score is likely due to the shared word 'Terror', but the author mismatch and distinct narratives confirm they are not the same book.

Index version: 2
Created: 2026-09-08 09:23 UTC
Last updated: 2026-09-08 09:23 UTC

Incoming candidate

Land of Terror

upload · 473

Candidate

Authors: Edgar Rice Burroughs
Language: english
Volume or part: None detected
Edition markers: None detected
Source identifier: Not provided
Gutenberg ID: Not provided
Source URL: https://www.globalgreyebooks.com/ebooks2/edgar-rice-burroughs_land-of-terror.epub
Description: In the hollow world of Pellucidar, where time stands still and the sun never sets, David Innes and Abner Perry have spent decades bringing civilization to Stone Age tribes. Now, Innes must navigate a perilous journey across vast, unexplored wildernesses filled with prehistoric beasts and hostile tribes to rescue his beloved Dian from the insane Jukan warriors, facing storms, starvation, and the ultimate test of survival in a world without north or south.

Local library

The Angel of Terror

Local book #6019

Downloaded

Authors: Edgar Wallace
Language: english
Volume or part: None detected
Edition markers: None detected
Gutenberg ID: 21530
Local EPUB: data/epubs/pg21530.epub File present
Source URL: https://www.gutenberg.org/ebooks/21530.epub.noimages
Description: Edgar Wallace's *The Angel of Terror* delivers a gripping courtroom drama and noir thriller centered on James Meredith, a wealthy man convicted of murder but spared death due to his fortune. The narrative shifts to Lydia Beale, a spirited illustrator who inherits her father's debts and finds herself entangled in a web of crime, gambling, and murder in Monte Carlo. With a tone of suspense and moral ambiguity, the novel explores themes of class, justice, and redemption, offering a fast-paced...

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Title similarity83%

Author similarity48%

Upload queue

The Angel of Terror

Local book #6019

Queued

Authors: Edgar Wallace
Language: english
Volume or part: None detected
Edition markers: None detected
Gutenberg ID: 21530
Local EPUB: data/epubs/pg21530.epub File present
Source URL: https://www.gutenberg.org/ebooks/21530.epub.noimages
Description: Edgar Wallace's *The Angel of Terror* delivers a gripping courtroom drama and noir thriller centered on James Meredith, a wealthy man convicted of murder but spared death due to his fortune. The narrative shifts to Lydia Beale, a spirited illustrator who inherits her father's debts and finds herself entangled in a web of crime, gambling, and murder in Monte Carlo. With a tone of suspense and moral ambiguity, the novel explores themes of class, justice, and redemption, offering a fast-paced...

View exact record Open source

Title similarity83%

Author similarity48%

Upload queue

The Angel of Terror

Local book #6019

Queued

Authors: Edgar Wallace
Language: english
Volume or part: None detected
Edition markers: None detected
Gutenberg ID: 21530
Local EPUB: data/epubs/pg21530.epub File present
Source URL: https://www.gutenberg.org/ebooks/21530.epub.noimages
Description: Edgar Wallace's *The Angel of Terror* delivers a gripping courtroom drama and noir thriller centered on James Meredith, a wealthy man convicted of murder but spared death due to his fortune. The narrative shifts to Lydia Beale, a spirited illustrator who inherits her father's debts and finds herself entangled in a web of crime, gambling, and murder in Monte Carlo. With a tone of suspense and moral ambiguity, the novel explores themes of class, justice, and redemption, offering a fast-paced...

View exact record Open source

Title similarity83%

Author similarity48%

Local library

The Land of Thor

Local book #1279

Downloaded

Authors: J. Ross Browne
Language: english
Volume or part: None detected
Edition markers: None detected
Gutenberg ID: 28329
Local EPUB: data/epubs/pg28329.epub File missing
Source URL: https://www.gutenberg.org/ebooks/28329.epub.noimages
Description: In "The Land of Thor," J. Ross Browne chronicles his extensive journey from St. Petersburg through Russia, Scandinavia, and Iceland. Blending sharp social observation with vivid travelogue, the book captures the stark contrasts of Russian despotism, the rugged beauty of the North, and the unique cultures of Norway and Iceland, offering a humorous yet insightful look at life along the Arctic Circle.

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Title similarity85%

Author similarity36%

Local library

Tales of terror

Local book #1456

Downloaded

Authors: Dick Donovan
Language: english
Volume or part: None detected
Edition markers: None detected
Gutenberg ID: 76261
Local EPUB: data/epubs/pg76261.epub File missing
Source URL: https://www.gutenberg.org/ebooks/76261.epub.noimages
Description: A collection of chilling supernatural tales featuring a surgeon's harrowing voyage on the cursed ship 'Ariadne,' a mother's descent into madness after her daughter's resurrection, and a rational man's terrifying encounter with a ghost at Bleak Hill Castle.

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Title similarity78%

Author similarity31%

LitVox public library

The Land of Mist

LitVox ID 1670

Public

Authors: Arthur Conan Doyle
Language: Unknown
Volume or part: None detected
Edition markers: None detected
LitVox UUID: 95c80263ecc5

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Title similarity74%

Author similarity32%

Local library

The Land of Mist

Local book #483

Downloaded

Authors: Arthur Conan Doyle
Language: english
Volume or part: None detected
Edition markers: None detected
Local EPUB: data/epubs/url-374472939e5fa7ec.epub File present
Source URL: https://www.globalgreyebooks.com/ebooks2/arthur-conan-doyle_land-of-mist.epub
Description: Arthur Conan Doyle's *The Land of Mist* is a philosophical science-fiction novel exploring spiritualism, séances, and the clash between scientific skepticism and belief in the afterlife. Through the eyes of Professor Challenger and his associates, the story delves into the supernatural, featuring ghostly manifestations, rescue circles for earthbound spirits, and the profound impact of death on the living.

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Title similarity74%

Author similarity32%

Upload queue

The Land of Mist

Local book #483

Queued

Authors: Arthur Conan Doyle
Language: english
Volume or part: None detected
Edition markers: None detected
Local EPUB: data/epubs/url-374472939e5fa7ec.epub File present
Source URL: https://www.globalgreyebooks.com/ebooks2/arthur-conan-doyle_land-of-mist.epub
Description: Arthur Conan Doyle's *The Land of Mist* is a philosophical science-fiction novel exploring spiritualism, séances, and the clash between scientific skepticism and belief in the afterlife. Through the eyes of Professor Challenger and his associates, the story delves into the supernatural, featuring ghostly manifestations, rescue circles for earthbound spirits, and the profound impact of death on the living.

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Title similarity74%

Author similarity32%

Local library

The new terror

Local book #1874

Downloaded

Authors: Gaston Leroux
Language: english
Volume or part: None detected
Edition markers: None detected
Gutenberg ID: 76493
Local EPUB: data/epubs/pg76493.epub File missing
Source URL: https://www.gutenberg.org/ebooks/76493.epub.noimages
Description: In this supernatural thriller, a newlywed husband discovers his wife's mind has been altered by a thief's psychic influence. As he navigates a world of delusions and spectral visions, he must confront a deadly rival in a duel that reveals a terrifying truth about the nature of love, possession, and the boundary between reality and the supernatural.

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Title similarity67%

Author similarity42%

Upload queue

The Story of Leather

Local book #4171

Queued

Authors: Sara Ware Bassett
Language: english
Volume or part: None detected
Edition markers: None detected
Gutenberg ID: 25823
Local EPUB: data/epubs/pg25823.epub File present
Source URL: https://www.gutenberg.org/ebooks/25823.epub.noimages
Description: A young athlete forced to work in his father's tannery discovers the dignity of labor and the value of character over academic grades. Through hardship and friendship, he learns that real education comes from experience, leading to a journey of self-discovery and family reconciliation.

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Title similarity67%

Author similarity43%

Upload queue

The Story of Leather

Local book #4171

Queued

Authors: Sara Ware Bassett
Language: english
Volume or part: None detected
Edition markers: None detected
Gutenberg ID: 25823
Local EPUB: data/epubs/pg25823.epub File present
Source URL: https://www.gutenberg.org/ebooks/25823.epub.noimages
Description: A young athlete forced to work in his father's tannery discovers the dignity of labor and the value of character over academic grades. Through hardship and friendship, he learns that real education comes from experience, leading to a journey of self-discovery and family reconciliation.

View exact record Open source

Title similarity67%

Author similarity43%

LitVox upload library

The Land of Thor

LitVox ID 2106

Parsed

Authors: Unknown author
Language: Unknown
Volume or part: None detected
Edition markers: None detected
LitVox UUID: ae0b17ae55bb
Gutenberg ID: 28329

View exact record

Title similarity85%

Author similarity0%

Manual review

Choose the operational outcome

Approval returns a blocked job to its queue. Confirming a duplicate prevents the job from progressing and keeps this evidence for audit.

Decision evidence

Title	83
Author	48
Language Agreement	True
Volume Conflict	False
Edition Conflict	False
Author Conflict	False
Relationship	different_edition

LLM adjudication details

Decision	different
Confidence	0.95
Relationship	different_edition
Reason	The books have different titles ('Land of Terror' vs 'The Angel of Terror'), different authors (Edgar Rice Burroughs vs Edgar Wallace), and completely different plot descriptions. The high title similarity score is likely due to the shared word 'Terror', but the author mismatch and distinct narratives confirm they are not the same book.
Matched Fields	language
Conflicting Fields	title_original, authors_original, description

Review history

Time	Action	Change	Reason
No manual review actions yet.