A Princess of Mars: Shadow of the Assassins (Preorder)


Expected to ship early Summer 2024

Dejah Thoris, fairest daughter of Helium—and indeed, of all Barsoom—comes to life in the pages of A Princess of Mars: Shadow of the Assassins, as she sets off on the first adventure of her young life, plunging headlong into a murky den of treachery and deadly peril.

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By Ann Tonsor Zeddies
Cover art by Douglas Klauba


Born to an ancient line of noble and courageous forebears, Dejah Thoris, young and headstrong princess of the mighty empire of Helium, longs for a life of excitement and purpose beyond the cloistered walls of her royal palace. When a foreign ambassador arrives with an invitation to visit his city-state in hopes of fostering diplomatic relations, the princess defies the protests of her father and jed, traveling to the shadowy metropolis of Zor as Helium’s emissary. But Dejah Thoris soon finds that her hosts are not like the gallant folk of Helium, and before she knows it, their nefarious machinations ensnare her in a tangled web of artifice, perfidy, and murder—and a treacherous plot that portends tragedy not only for her own family, but for the entire Heliumetic empire.

Bonus Novella: “John Carter of Mars®: Swords of the Mind” by Geary Gravel

John Carter is baffled when he encounters his son’s badly damaged flier racing through the Martian skies with no one on board. The mystery only deepens when he traces the lost ship to its last port of call and finds himself battling for his life in a city of illusions—where the peril is all too real!

Included with any edition


Bonus Trading Card—While Supplies Last!
All preorders of A Princess of Mars: Shadow of the Assassins placed directly from ERB, Inc.’s online store will come with an exclusive collectible ERB Universe trading card featuring Carthoris, stalwart son of John Carter and Dejah Thoris. Collect all of the trading cards by preordering each ERB Universe novel directly from ERBurroughs.com!


Included with Collector’s Edition

Hardcover Limited Collector’s Edition
The hardcover Collector’s Edition features a special ERB Universe bookplate signed by authors Ann Tonsor Zeddies and Geary Gravel, as well as a facsimile autograph of Edgar Rice Burroughs, and includes a second exclusive ERB Universe trading card spotlighting Dejah Thoris and featuring Douglas Klauba’s cover art for A Princess of Mars: Shadow of the Assassins (in addition to the Carthoris trading card). The Collector’s Edition is limited to only 200 copies.

About the Authors
Ann Tonsor Zeddies first encountered the ERB Universe as a child, when an old professor who lived down the street allowed her to choose a volume from his shelves. She chose Tarzan of the Apes. Later, she read the adventures of John Carter aloud to her young son. She is the author of six science fiction novels, two of which were Philip K. Dick Award nominees. Her short fiction includes stories in The Ultimate Silver Surfer and Magic in the Mirrorstone. She lives in Michigan with her husband, near the shores of an inland sea.

Geary Gravel is the author of the Edgar Rice Burroughs Universe novel John Carter of Mars: Gods of the Forgotten; the Philip K. Dick Award finalist The Alchemists; and the novels The Pathfinders, A Key for the Nonesuch, and Return of the Breakneck Boys. He has written several novelizations, including Hook, based on the Steven Spielberg film, and Batman: Mask of the Phantasm, based on the animated movie. He lives in western Massachusetts, where he worked for decades as a Sign Language Interpreter for the Deaf.

About the Cover Artist
An award-winning illustrator, Douglas Klauba was born and raised in Chicago, and is a graduate of the American Academy of Art. His paintings have been included in the art annuals of Spectrum: The Best in Contemporary Fantastic Art, the Society of Illustrators, and Imagine FX magazine. He was Artist Guest of Honor at the 2016 Burroughs Bibliophiles Dum-Dum convention, and he previously provided artwork for the books Tarzan Trilogy, Untamed Pellucidar, Dark Tides of Mars: A Novel of Barsoom, Tarzan and the Valley of Gold, The Girl from Hollywood Centennial Edition, and Tarzan and the Forest of Stone, all published by Edgar Rice Burroughs, Inc.



The Dead Moon Super-Arc
Korak at the Earth’s Core by Win Scott Eckert

Swords of Eternity Super-Arc
Carson of Venus: The Edge of All Worlds by Matt Betts
Tarzan: Battle for Pellucidar by Win Scott Eckert
John Carter of Mars: Gods of the Forgotten by Geary Gravel
Victory Harben: Fires of Halos by Christopher Paul Carey

Other Edgar Rice Burroughs Universe Books
A Princess of Mars: Shadow of the Assassins by Ann Tonsor Zeddies
Mahars of Pellucidar by John Eric Holmes
Red Axe of Pellucidar by John Eric Holmes
Tarzan and the Forest of Stone by Jeffrey J. Mariotte
Tarzan and the Valley of Gold by Fritz Leiber
Tarzan and the Dark Heart of Time by Philip José Farmer

© Edgar Rice Burroughs, Inc. All Rights Reserved. Trademarks Dejah Thoris®, A Princess of Mars®, John Carter®, John Carter of Mars®, Carthoris™, Barsoom®, Tarzan®, Tarzan of the Apes®, Amtor™, Pellucidar®, Beyond the Farthest Star™, and The Girl from Hollywood® Owned by Edgar Rice Burroughs, Inc. Associated logos, characters, names, and the distinctive likenesses thereof are trademarks or registered trademarks of Edgar Rice Burroughs, Inc.

Additional information

Weight 1.9 lbs
Dimensions 9 × 6 × 2 in

Paperback, Hardcover, Hardcover Collector’s Edition, Less-than-Perfect Hardcover, Less-than-Perfect Paperback

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