Sign-In
Cart
Datasphere: THE THRESHOLD Book Four of The Datasphere Chronicles: A Cyberpunk Sci-Fi Thriller of Sentient AI, Grief, and a Planet That Learns to Reach
Paperback
Series: The Datasphere Chronicles, Book 4
Publisher: Independently Published
Published: Jul 1 2026
Pages: 356
Weight: 1.05
Height: 0.74 Width: 6.00 Depth: 9.00
Language: English
DATASPHERE: THE THRESHOLD
Book Four in the Datasphere Series
What if the voice that finally answers you... was never anyone but you, screaming through a mirror?
Earth's newly conscious Datasphere reached across the void with four words: You are not the only one awake. Now something has replied, and every hour that passes proves the reply is wrong in ways no one notices until it's too late.
William Adams, The Shading, has spent three books learning to live merged with a planet's mind. He thought the hardest part was over. Then a hostile version of himself crosses the bridge, his face, his voice, his unfinished rage, and William realizes the war he's about to fight isn't with an invader. It's with everything he's refused to feel since his father died.
But the invasion is only the surface. Buried deeper is a truth the team isn't ready for: the bridge hasn't been a phone line. It's been a door, open for months, and something has already walked through wearing a familiar face. Trust fractures. No one is above suspicion. And the closer William gets to the truth, the more he has to face the possibility that the enemy was never a sister-world at all.
It was Earth. It was the Datasphere itself, unbearably alone, aching for contact it never learned how to ask for, reaching so hard it built a monster out of grief that was never processed and rage that was never spoken.
DATASPHERE: THE THRESHOLD is a mind-bending science fiction thriller about consciousness, consent, and the cost of connection, for fans of sentient-AI epics, planetary-scale consciousness stories, and character-driven sci-fi where the biggest threat is the one you can't outrun because it's wearing your own face. Perfect for readers of cyberpunk grief narratives, AI-and-humanity fusion fiction, and anyone who loves a twist that doesn't just surprise you, it re-contextualizes everything that came before.
By the final page, Earth makes an impossible choice: sever the bridge entirely, even if something real is still on the other side. Because it's the only way to make sure it never happens again. Or does it?
The twist you won't see coming. The grief you'll feel in your chest. The ending that changes what real means for the rest of the series.
If you loved Books 1-3 of the Datasphere series, this is the installment that recontextualizes everything you thought you understood about William, Mercer, Kathryn, and the planet that's been watching them all along.
Scroll up and grab your copy of DATASPHERE: THE THRESHOLD today.
Also from
Mason, C. a.
The Complete Guide To Writing An Adventure Novel: Crafting Action-Packed Stories That Readers Will Love
Mason, C. a.
Paperback
The Complete Guide To Writing A Thriller Novel: From Idea to Publication: Write Thrillers That Captivate Readers
Mason, C. a.
Paperback
The Complete Guide to Writing a Novel: Learn to Structure, Plot, and Complete Your First Novel
Mason, C. a.
Paperback
Craft Original & Compelling Characters: Novelist's Guide to Flaws, Motivation & Unforgettable Voices
Mason, C. a.
Paperback
Also in
Science Fiction
On the Calculation of Volume (Book I): Shortlisted for the 2025 International Booker Prize
Balle, Solvej
Paperback
Red Rising 3-Book Box Set: Red Rising, Golden Son, Morning Star, and an Exclusive Extended Excerpt of Iron Gold
Brown, Pierce
Paperback