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Cover of A Letter to the Luminous Deep by Sylvie Cathrall
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A Letter to the Luminous Deep

Sylvie Cathrall

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Similar in themes

These books are ranked using the themes labels extracted for A Letter to the Luminous Deep.

Themes labels used: mental health, grief and loss, family, friendship, discovery, curiosity, academia, knowledge, exploration, kindness, love, memory, secrecy, investigation, loneliness, connection, science, representation

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

Cover of La vieja familia by Eva García Sáenz

La vieja familia

Eva García Sáenz, Eva García Sáenz de Urturi · 2012 · La saga de los longevos

An archaeologist joins a secretive longevous family and uncovers a genetic mystery tied to a buried past and new love.

Semantic match: ranked by themes

Distance: 0.1280

Cover of Gravity Falls: Journal 3 by Alex Hirsch

Gravity Falls: Journal 3

Alex Hirsch, Rob Renzetti · 2022

A replica mystery journal from Gravity Falls adds hidden codes, new notes, and extra lore around the show’s secrets.

Why this is here

Themes labels: curiosity · mystery · weirdness · family · friendship · forgiveness · trust · coming of age · knowledge seeking · closure · loss · identity · hidden truth · sacrifice · heart

Semantic match: ranked by themes

Distance: 0.1314

Cover of Penguin Highway by Tomihiko Morimi

Penguin Highway

Tomihiko Morimi, 森見 登美彦 · 2019

A brilliant fourth-grader investigates penguins appearing in his town, using notes and experiments to solve a strange mystery.

Semantic match: ranked by themes

Distance: 0.1347

Cover of A Rover's Story by Jasmine Warga

A Rover's Story

Jasmine Warga · 2022

A Mars rover develops human feelings during a mission and learns what courage, friendship, and purpose cost.

Semantic match: ranked by themes

Distance: 0.1384

Cover of Flotsam by David Wiesner

Flotsam

David Wiesner · 2006

A curious boy finds a mysterious underwater camera on the beach and discovers a hidden world in its photographs.

Semantic match: ranked by themes

Distance: 0.1412

Cover of Homebound by Portia Elan

Homebound

Portia Elan · 2026

A queer, time-spanning sci-fi novel where one unfinished game links grieving lives across centuries.

Semantic match: ranked by themes

Distance: 0.1415

Cover of The End and Other Beginnings: Stories from the Future – A Masterful Illustrated Sci-Fi Anthology for Teens about Friendship, Hope, and Technology by Veronica Roth

The End and Other Beginnings: Stories from the Future – A Masterful Illustrated Sci-Fi Anthology for Teens about Friendship, Hope, and Technology

Veronica Roth · 2019 · Carve the Mark

Six illustrated YA sci-fi novellas explore future worlds where love, grief, and hope collide with strange technologies.

Semantic match: ranked by themes

Distance: 0.1439

Cover of The Infinite Lives of Maisie Day by Christopher Edge

The Infinite Lives of Maisie Day

Christopher Edge · 2018

A science-savvy girl’s 10th birthday splits into two realities, forcing her to solve a universe-bending mystery.

Semantic match: ranked by themes

Distance: 0.1459