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Crystal World

Undying Mercenaries #20 / 26
by B. V. Larson
Crystal World (Undying Mercenaries #20) by B. V. Larson
★ 10.00 / 1
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The Silicoids are a growing threat from beyond the frontier. Launching waves of crystalline drones, they ravage colonies all along the border of the Empire. Earth has been forced to ally with her enemies against this mysterious alien menace.

Scouts have located a forward base of the freakish creatures, who plot to annihilate all meat-based lifeforms. Earth assembles a joint task force with legions of Rigellian bears, Mogwa battlecruisers, and Saurian troops. Together, they strike as one against Crystal World.

After annoying every superior in his chain of command, James McGill is the first to be deployed on the unexplored planet. His mission: to establish a beachhead on this strange, hostile ground. Surrounded and cut off, his troops fight to the bitter end against creatures made of earth, stone, and jewels.

Find out what happens next in CRYSTAL WORLD, the thrilling 20th book of the Undying Mercenaries series. With millions of copies sold, USA Today Bestselling author B. V. Larson is the king of modern military science fiction.

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Science FictionSpace OperaHard Science Fiction
Release date: October 14, 2023

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B. V. Larson

B. V. Larson's journey through the realm of science fiction is a testament to the power of persistence and reinvention. Hailing from a background as a self-published author in the early 2000s, Larson's rise to success was not instantaneous, but rather the result of years of dedication and an unyielding belief in the power of storytelling. His work, which spans a wide array of futuristic and galactic narratives, has captivated millions of readers around the world.

With over seventy books under his belt and a devoted fan base, Larson’s writing transports readers to worlds brimming with adventure, technology, and unforgettable characters. His "Undying Mercenaries" series, one of his most well-known works, stands as a prime example of his signature style—blending fast-paced action with complex, multifaceted characters. His books have been embraced by fans of military science fiction, space operas, and high-stakes intergalactic drama.

Read more ...

What sets Larson apart in a crowded genre is his knack for creating immersive universes that feel both vast and deeply personal. Readers connect not just with the high-octane battles and thrilling plots, but with the emotional journeys of the characters that anchor his stories. Whether exploring themes of loyalty, sacrifice, or the quest for meaning in a chaotic universe, Larson’s novels resonate long after the last page is turned.

A true pioneer in the digital age, Larson found success through self-publishing and made his mark in the early days of Amazon’s Kindle platform. He embraced the possibilities of indie publishing at a time when many authors were uncertain, and his decision paid off. Today, his books are not only bestsellers, but they've been translated into multiple languages and adapted into audiobooks, making his work accessible to an even broader audience.

B. V. Larson’s works may begin in the far reaches of space, but his ability to weave universal themes into the fabric of his narratives ensures that readers feel an undeniable connection to the worlds he creates. From the thrill of space combat to the quiet moments of introspection, Larson's stories continue to engage readers who are ready to venture into the unknown with every new release.

Undying Mercenaries

In the far reaches of space, where the line between life and death is often a matter of circumstance, Undying Mercenaries stands out as a thrilling blend of relentless action, intricate world-building, and characters with an unshakable will to survive. The series introduces readers to a universe where battles aren’t just fought for survival—they’re fought for honor, loyalty, and the freedom to choose one's fate in a galaxy that doesn’t always allow such luxuries.

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At the heart of this expansive space opera is the saga of a group of mercenaries who find themselves caught in the never-ending crossfire of intergalactic conflict. Led by a protagonist with a mysterious past, the team navigates deadly combat, political intrigue, and the threat of forces far beyond their control. Each mission tests their resolve, but it’s their bonds with one another—formed in the fire of war—that define their ultimate journey.

What sets Undying Mercenaries apart is its mix of high-stakes military action and a deeply human exploration of what it means to fight for something bigger than oneself. Larson’s trademark writing style delivers fast-paced battles and visceral combat scenes, but it’s the nuanced character arcs and emotional stakes that elevate the series beyond a typical sci-fi adventure. Readers are drawn not just into the sweeping galactic conflicts, but into the souls of the soldiers who risk everything, and sometimes, lose everything.

As the series progresses, the stakes grow even higher—pushing the mercenaries to face more than just their enemies. They must confront their own personal demons, ethical dilemmas, and the weight of past choices. Each book offers a new layer to the universe Larson has created, with new planets, factions, and technologies that make the narrative endlessly captivating.

For fans of military sci-fi, Undying Mercenaries is a journey worth taking, full of complex characters, thrilling battles, and a universe where survival is never guaranteed. Whether you're a seasoned reader of space operas or new to the genre, this series promises an unforgettable adventure through the stars.


Undying Mercenaries consists of twenty-five books and series is set to expand with the upcoming release of one more book. The current recommended reading order for the series is provided below.

Steel World (Undying Mercenaries #1)
★ 10.00 / 1
Crystal World (Undying Mercenaries #20)
★ 10.00 / 1
Throne World (Undying Mercenaries #21)
★ 10.00 / 1
Rebel World (Undying Mercenaries #22)
⧗ 9.60 / 10
Rage World (Undying Mercenaries #23)
⧗ 8.00 / 1
Demon World (Undying Mercenaries #24)
★ 10.00 / 1
Hell World (Undying Mercenaries #25)
⧗ 9.18 / 11
Undying Mercenaries Book 26 (Undying Mercenaries #26)
⧗ 8.00 / 1


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