Hiddensci-fi
Cover of Undertow by Michael Buckley
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Undertow

Michael Buckley

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Similar in plot structure

These books are ranked using the plot structure labels extracted for Undertow.

Plot structure labels used: slow start, gradual reveals, cliffhanger ending, twists and turns, high-tension buildup, action climax, series setup, mystery withholding, romance subplot, forced proximity

Focused on “withheld twist” where exact label matches exist.

This does not mean the books share the same plot, setting, quality, or difficulty. It means their plot structure embeddings are close.

Cover of Escaping Eleven by Jerri Chisholm

Escaping Eleven

Jerri Chisholm · 2020 · Eleven Trilogy

A fierce underground fighter plots escape from a brutal caste system, then falls for a boy from the top floor.

Semantic match: ranked by plot structure

Distance: 0.0811

Cover of Carter & Lovecraft by Jonathan L. Howard

Carter & Lovecraft

Jonathan L. Howard · 2015 · Carter & Lovecraft

An ex-cop PI inherits a Providence bookstore and is pulled into a bizarre, reality-bending mystery tied to Lovecraftian mythos.

Semantic match: ranked by plot structure

Distance: 0.0815

Cover of Golden Blood by Melissa Pearl

Golden Blood

Melissa Pearl · 2012 · Time Spirit Trilogy

A secretive teen time traveler falls for a normal boy, risking her family’s rules, safety, and the past itself.

Semantic match: ranked by plot structure

Distance: 0.0842

Cover of Black River: Deluxe Edition by Ruby Jean Cottle

Black River: Deluxe Edition

Ruby Jean Cottle · 2026 · Black River

A bookish teen in a mountain town wakes changed, craving blood, and must uncover what’s happening before it consumes her.

Semantic match: ranked by plot structure

Distance: 0.0861

Cover of Into the Stars by James Rosone

Into the Stars

James Rosone · 2020 · Rise of the Republic

Humanity’s first deep-space contact turns a promising colonization push into a fight for survival and interstellar power.

Semantic match: ranked by plot structure

Distance: 0.0861

Cover of The 13th Tribe by Robert Liparulo

The 13th Tribe

Robert Liparulo · 2012 · Immortal Files

A faith-wounded security guard uncovers an immortal tribe’s violent plan, forcing him to protect his family and the world.

Semantic match: ranked by plot structure

Distance: 0.0888

Cover of The Legacy of the Key by S.L. Morgan

The Legacy of the Key

S.L. Morgan · 2012 · Ancient Guardians,

A grieving college student discovers she’s a hidden key to other worlds—and to a dangerous, fated romance.

Semantic match: ranked by plot structure

Distance: 0.0898