To Tread Obsidian Shores

WHAT DOES IT MEAN TO BE A WARRIOR?

The Protectorate of Mars Foreign Legion: 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 escape: the Legion. Searching for a new life, he soon discovers something even better—a family.

WELCOME TO THE LEGION

Cover Art by Pierluigi Abbondanza
Title page art by Rabbit Boyett

Hardcover

This is a work of fiction. All the characters and events portrayed in this book are fictional, and any resemblance to real people or incidents is purely coincidental.

First printing, January 2026

Distributed by Simon & Schuster
1230 Avenue of the Americas
New York, NY 10020

Printed in the United States of America

ISBN-13: 978-1-6680-7306-3
eISBN: 978-1-964856-48-3

A Baen Books Original
Baen Publishing Enterprises
P.O. Box 1403
Riverdale, NY 10471
http://www.baen.com

Electronic version by Baen Books
http://www.baen.com

To Tread Obsidian Shores

ISBN-13: 978-1-6680-7306-3eISBN: 978-1-964856-48-3

ISBN-13: 978-1-6680-7306-3
eISBN: 978-1-964856-48-3