The Light Within Darkness

Book 3 in the Space Unbound Series

“A fantastic addition to the Space Unbound series that delivers on the promises made in earlier novels . . . The stakes are higher, the villains more terrifying, and the worldbuilding more complex than ever before. At its heart, The Light Within Darkness remains a deeply personal foray into the wonder of humanity, nature, and life, while it takes you on a fantastic adventure led by a compelling crew.”
— Joelene Pynnonen for Independent Book Review

Year 2218

A vast new region of space with its own network of interconnected voidoids has just been discovered, expanding humanity’s prospects immeasurably. But a malevolent mastermind is on the loose, and he’s claimed it all for himself and his twisted Posthuman empire. Now he’s on a crusade to wipe out the human race and is cloning an invincible army of transhuman psychopaths to do the job. The Alliance must stop him, but no one knows where he is among the 50,000 stars scattered across the region’s three million cubic light-years of space. The Sun Wolf, with its zero-point drive, is the only ship with any chance of finding this sinister demigod before it’s too late. The hunt begins with a cryptic clue that leads Commander Aiden Macallan and his hand-picked crew to uncharted star systems and exotic exoplanets. At the same time, Aiden’s mate, renowned microbiologist Skye Landen, follows a promising clue of her own, risking a fate worse than death. But time is running out, and an unforeseen ally from another realm may be their only hope for saving humanity from extermination.

Praise for The Light Within Darkness

“Jeffrey’s novels, like the universe itself, tend toward the expansive, and The Light Within Darkness feels bigger than ever. . . . The action is brainy but still visceral, rendered in crisp prose, with stakes that couldn’t be higher. But the heart of this series is in teamwork, in singular solutions to intractable problems, in impossible dilemmas and hard choices . . . Takeaway: Stellar space-faring SF bursting with new worlds and camaraderie.”
— Publishers Weekly BookLife (Editor’s Pick)

“The third installment in David C. Jeffrey’s Space Unbound saga continues the rousing, grand-scale science-fiction adventure . . . The storyline is filled with more than a few wildly satisfying plot twists, which not only enrich the novel but plant fertile plot seeds for upcoming installments. Bottom line: Jeffrey’s stellar saga is just as good—if not better—than anything grand-scale science fiction fans will find currently being released by traditional publishers. It’s a stand-up-and-applaud, unforgettable reading experience.”
— BlueInk Review (Starred Review)

“Pushing the sci-fi adventure genre and this ambitious series into uncharted space, The Light Within Darkness is a tremendous third chapter in the Space Unbound saga. The sci-fi world-building and creative future tech elements, as well as the author’s slow-drip exposition style, make the reading experience immersive and addictive. This novel crackles with creativity and some serious scientific clout to perfectly blur the line between fiction and our possible future.”
— Self-Publishing Review

“The Light Within Darkness, book three in David C. Jeffrey’s Space Unbound series, is a sci-fi story about journeying across space on a spine-chilling quest…The book’s amazing details are one of its most noticeable features. Sci-fi lovers will love how extensive its descriptions of its scientific components are and how seamlessly they’re woven into the plot… a sci-fi gem with perfect, well-developed features. Core sci-fi aficionados will especially love this book.”
— Foluso Falaye for San Francisco Book Review (5 Stars)

“The Light Within Darkness excels at crafting a richly detailed and immersive setting, transporting readers to the far reaches of outer space. . . With its captivating storyline, memorable characters, and stunningly vivid setting, this novel offers an unforgettable journey into the heart of darkness.”
— Maria Yinks for Manhattan Book Review (5 Stars)

“In The Light Within Darkness, David Jeffrey continues his remarkable craft of world-building, showcasing his vivid imagination and meticulous attention to detail. The scientific components are seamlessly integrated into the plot, offering readers an immersive experience… Fans of hard science fiction such as The Expanse series, 2001: A Space Odyssey, and Blade Runner will find this book a true gem, showcasing the perfect blend of suspense, action, and character-driven storytelling.
— Parul Sood for Readers’ Favorite