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Cover of To Tread Obsidian Shores

To Tread Obsidian Shores

by Jason Córdova

🌶️fade to black·spoiler·Bronze Legion #1·Ongoing Series

Why Read This?

A military sci-fi that earns its emotional punches through characters you genuinely root for. The romance is woven into the fabric of the story rather than bolted on, with two veteran authors who balance action and heart perfectly.

Synopsis

WHAT DOES IT MEAN TO BE A WARRIOR? The Protectorate of Mars Foreign A path to citizenship. A fresh start. Defending the Protectorate of Mars against all enemies, foreign and domestic. HOPE With itchy feet and a vagabond soul, all Blue ever wanted was to join the Survey Corps and explore the universe. But when she failed the entry exam, becoming a dropship pilot for the Legion was her last chance at achieving that dream. It was only supposed to be a stepping stone . . . DUTY All he ever wanted was a home. But when Tavi is driven from his world by murderous revolutionaries, he only has one chance to the Legion. Searching for a new life, he soon discovers something even better—a family. WELCOME TO THE LEGION At the publisher's request, this title is sold without DRM (Digital Rights Management). Jason Cordova is both a John W. Campbell Award and Dragon Award finalist. He edited his first anthology, Chicks in Tank Tops , coauthored Monster Hunter Fever with Larry Correia, and wrote Mountain of Fire in the Black Tide Rising universe, all with Baen Books. He has 28 novels currently in print and has been featured in numerous anthologies. A Navy veteran, he is also a former middle school teacher. Though Californian by birth, he has since relocated to the South, where he swears at the humidity on a thrice-daily basis. He can be found at www.jasoncordova.com. Melissa Olthoff . is a science fiction and fantasy author who delights in sneaking in romance wherever she can. She is a lifelong geek and a veteran of the United States Air Force, both of which are incredibly useful when writing. Her degrees in meteorology and accounting are slightly less applicable to writing but absolutely useful when it comes to supporting her family. In 2023, she took second place in the annual Baen Fantasy Adventure Award Contest with her story “Fall from Grace” and won the Imadjinn Award Best Short Story in 2023 and 2024. She is published by Baen, Chris Kennedy Publishing, Hit World Press, and Three Ravens Publishing, and is best known for her novel of the Griffin Corps, Rise from Ruin , and novels in the Four Horsemen Universe, the Blood & Armor Series, the Salvage Title Universe, and Hit World Valkyries, as well as numerous short stories. Praise for Melissa “. . . Olthoff creates not only a believable and immersive world, but populates it with people whom you can respect, understand, care for, and sometimes want to punch in the face . . .” —Jody Lynn Nye, New York Times best-selling author Praise for Jason “A great combination of story-telling skill and imagination that really hooks you.” —Larry Correia, New York Time best-selling author of Monster Hunters International

At a Glance

5.00 ★ Goodreads
Spice Level🌶️fade to black
Endingspoiler
PairingM/F
Romance Pacingslow burn
Energymedium

Top Tropes

forced proximityslow burnmilitary romancefound family

Mood

adventuroushopefulbittersweetsuspenseful

Book Details

Goodreads Rating

5.00 ★

Page Count

400 pages

Published

2026

Primary Genre

Sci-fi Romance

Pairing

M/F

POV

Dual POV

Romance Pacing

Slow Burn

Cliffhanger

spoiler

Audiobook

Available

Yes

Format

Unabridged

Narrator

Luis Moreno

Tropes

RomanceMagicActionAngstWorld
Theme Constellation

Mood & Vibe

Mood

Writing Style

cinematicpunchywarmsuspenseful

Story Pacing

medium

Emotional Weight

moderate

Energy Required

medium

Vibes

Starship Troopers meets slow burn romance, military camaraderie, space frontier, peacetime tension

Characters

FMC Archetype

warrior/fightersurvivor

MMC Archetype

reluctant herowarrior/fighter

Relationship Dynamics

reluctant allies to loverspartners in crimeslow burn

Spice Details 🌶️

🌶️
🌶️
🌶️
🌶️
🌶️
🌶️
Spice Level 1

Spice Style

closed door / fade to black — tension and anticipation focus, romance woven around action

Getting Steamy

tensionanticipationlonging glances

Bringing the Heat

None
violencedeath of loved onetraumawargrief

World & Setting

World Type

space/sci-fi

Primary Setting

space station / spaceship / colonymilitary camp

Fantasy Creatures

Representation

immigrant experienceveteran experience

Reading Context

Emotional Payoff

found family feelsadrenaline rushearned hope

Best Time of Year

anytime

When & Where to Read

vacationcozy evening

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