The Cambrian Vacuum (Cambrian Saga Book 1) by William Bahl

We are not the inheritors of the universe. We are the mold that grew on its corpse.

For two decades, paleo-physicist Dr. Vesper Channing has been haunted by a terrifying truth: the universe’s slow slide into entropic heat death isn't a natural law, but an engineered condition. Armed with her life's work, the Axiomatic Hull—a revolutionary shielding technology capable of maintaining local physics—Vesper leads a team of elite specialists aboard the research vessel Ostracon deep into the Boötes Void. Their destination is The Silt, a massive, impossible pocket of space where the laws of the ancient, pre-matter universe are rumored to still breathe.What they discover defies every rule of modern science. The Silt is an intricate, hyper-dimensional ecology inhabited by Geometric Fauna—sentient fractals and predatory gravitational eddies moving in a precise, universal rhythm of 1.372 seconds. At the absolute center of this primordial cosmos hangs The Epitaph, an eighty-kilometer crystalline monument left behind by ancient entities of pure geometric law.But humanity was never meant to witness the beginning of time.During their boundary crossing, a catastrophic breach in the Axiomatic Hull leaks Standard Model physics into the pristine environment. To a universe that has never known decay, entropy is a highly contagious, necrotic virus. As Vesper watches the beautiful, ancient ecosystem rapidly collapse into featureless gray ash because of her presence, the ship's systems fail, threatening to trigger a terminal vacuum collapse that will claim the lives of her twenty-seven crew members.With her own body succumbing to the creeping numbness of the entropic leak, Vesper is faced with The Epitaph's final decrypted transmission: the current universe is actually a sterile, three-dimensional prison—a quarantine imposed by a tyrannical force to keep the primordial cosmos dead. Humanity is merely the accidental byproduct of that weapon.With under thirty minutes left before total annihilation, Vesper must choose between a terrible binary: passive surrender, which will preserve humanity but permanently erase the last remnants of the original cosmos; or a deliberate core overload, unleashing a Reverse Cambrian Explosion that will liberate an infinite paradise—but render all matter-based life logically impossible.Trapped between genocide and omnicide, Vesper has to decide if she is willing to destroy her own world to resurrect the universe.