Transition Age Trilogy | Book Two

Horizon Fault

The collapse of trust begins when history unravels.

Tyler Corriveau

Horizon Fault book cover

10/24/2026 · Pre-Order From

Paperback $16.99 · eBook $6.99 · (Included with Kindle Unlimited subscription)

What is Horizon Fault about?

Years before the events of Transition Age, a single city exposed the cracks beneath a carefully engineered future. In the aftermath of a catastrophic failure known as the Great Horizon Fault, the megaregion of Seattle became a test case the world would rather forget.

Following her harrowing escape from a subterranean lab, Iris Vale is thrust into the center of a global conspiracy. Guided by the chilling firsthand account of a surviving mother and son, Iris learns the historic disaster may not have been what everyone was told to believe.

To stop a new and escalating threat from dismantling the world, Iris must venture into Seattle's irradiated ruins to search for answers in a void of quantum entanglement. What she may uncover in the shadows of the fallen city could challenge the future of the Transition Age, forcing everyone to question the mystery of the children who vanished that dark winter.

What themes does Horizon Fault explore?

Reliving Catastrophe

A mother and son's firsthand account forces Iris to relive the night Seattle fell, memory by memory, past the official story built to erase it. What she uncovers reopens a wound the UFN never let heal.

Neural Interfaces

Augmented minds and networked interfaces blur the line between memory and manipulation. In Seattle's ruins, Iris must decide which of her own recovered memories can still be trusted.

Cyberpunk Cities

In mile-high megacities controlled by oppressive governments, megacorporations, and artificial intelligence, the populace lives fearful of going against the order. Survival depends on ignorance and obedience.

Global Conspiracies

The Horizon Fault reaches far beyond Seattle, tangled in decisions made at the highest levels of the UFN and its corporate partners. Iris's search for the truth threatens to expose a conspiracy built to span the globe.

Fight For Agency

Escaped from the lab that engineered her, Iris refuses to become a pawn in someone else's design. Her fight for the truth is also a fight to reclaim a life stolen from her.

Warring Corporations

As Nova and Horizon maneuver for control of the fallout, Iris is caught between two megacorporations willing to bury a city's secrets to protect their own interests.

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Book Details

Genre
Sci-Fi · Cyberpunk · Dystopian · Technothriller
Pages
297 pages (paperback)
Formats Available
Paperback · Kindle eBook
Published
October 24, 2026
ISBN Paperback
979-8-9946284-1-6
ISBN Hardcover
979-8-9946284-2-3
ISBN eBook
979-8-9946284-6-1

Who is Tyler Corriveau?

Tyler Corriveau grew up in the Greater Boston area with a lifelong passion for science fiction across books, film, and television. Storytelling became his way of exploring systems, power, and identity, and more than a decade of watching how technology quietly manages daily life became the foundation for the Transition Age Trilogy.

View Tyler Corriveau's author profile on Goodreads

Horizon Fault book cover

Coming 2027

The Uncounted

The final installment to the trilogy is in development, learn about the climatic conclusion.

Read About The Uncounted

Frequently Asked Questions:
Transition Age Trilogy

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