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Tyrants of Gravity
Paperback
Series: The Sentinel Suppressions, Book 2
Publisher: Vox Proxima Press
Published: Dec 18 2025
Pages: 422
Weight: 0.96
Height: 0.94 Width: 5.25 Depth: 8.00
Language: English
The first alien attacks on Earth failed, defeated by human advances in physics and telepathy. But dystopian aftershocks continue on Earth while an alien fleet near our sun reacts with fury.
Humans mount a frantic defense.
The aliens launch planet killers.
Earth's civilization and billions of human lives are at stake.
Two autistic boys, Robby and Luca, search for their lost parents-lost in the dystopia created by the alien attacks. The rogue alien officer, Cap, is thrilled by the boys' emerging telepathy mutation and helps them in their quest.
Scott Anderson, Robby's physicist brother, joins the Space Force weapons development team to defend against the approaching alien fleet. But man's technology that harnesses the energy of primordial black holes is primitive compared to the Centauri fleet's weapons.
Five-Star Review for Tyrants of Gravity by Literary Titan,
I'd hand this to readers who like military science fiction, hard science fiction, first-contact fiction, alien invasion fiction, and space opera with a strong ideological spine. Fans of The Expanse will recognize the blend of systems-level conflict and human vulnerability, though Gruger's book is more feral and less urbane; at moments it also feels like John Scalzi put on a darker, less ironic face. This is for readers who want their science fiction to argue, bruise, and burn. Tyrants of Gravity is a sci-fi novel that thinks big and hits with surprising heart.
Feral sci-fi. Perfect for readers who enjoy the hard science fiction of James S. A. Corey and Andy Weir or Tom Clancy's techno-thrillers.
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