Halcyon Days: The Colossus, a thrilling sci-fi adventure featuring sky pirates, will have its ARC release on 8/25. The official release date is set for 9/25.

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Best Indie Sci-Fi Book of 2025 – Halcyon Days: The Colossus

Best Indie Sci-Fi Book of 2025 – Halcyon Days: The ColossusBest Indie Sci-Fi Book of 2025 – Halcyon Days: The ColossusBest Indie Sci-Fi Book of 2025 – Halcyon Days: The Colossus

We're doubling down! You wanted one Colossus? You're getting two. You wanted one book you'll love? Here's a second, featuring the thrilling sci-fi adventure of Halcyon Days: The Colossus and the daring exploits of sky pirates.

The Colossus Prologue
TCitS Prologue

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Charlie Brunswick and the Encrypted Room
  • Charlie Brunswick and the Encrypted Room
  • Charlie Brunswick and the Encrypted Room

Halcyon Days: The city in the sands

A dark ink illustration of a mysterious man in a long coat with spiky hair.

Book 2

The crew of the Halcyon Days: The Colossus saved a nation. Now they're flying into the heart of the empire that wants them dead. Celebrated as heroes after sinking the Colossus, Kal and his crew are pulled into a new sci-fi adventure that takes them beyond Iverian borders and into Aurelia, a land of red sand, old grudges, and a second Colossus chained beneath a city built on conquest. With a princess-turned-soldier aboard and alliances already fraying, the crew must infiltrate the most dangerous capital in the world. But Kenzie carries a secret that could unravel everything, one that grows harder to keep as the people she loves draw closer to the truth and the empire she fled closes in around her. If you loved the first, you'll probably want to put a ring on this one, especially if you're a fan of sky pirates.

Halcyon Days: The Colossus

Black and white ink-style samurai character with a sword.

Book 1

In a divided world powered by rival elemental crystals, the skyship Halcyon Days: The Colossus roams the skies in search of freedom, fortune, and something worth fighting for. Its crew is a makeshift family bound together by trust, grit, and defiance.


When whispers of a long-buried weapon begin to surface, they’re pulled into the heart of a rising conflict. Old powers stir, alliances falter, and the skies turn hostile. Survival will demand more than luck, and the choices they make will echo across a nation on the brink.


Perfect for fans of sci-fi adventure, Final Fantasy, Mistborn, and Star Wars, The Colossus kicks off a cinematic trilogy full of sky pirates, high-flying adventure, found-family dynamics, and the dangerous weight of power.

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Hi, let us know what you think?

Have a question, a theory, or just want to discuss Halcyon Days: The Colossus? Drop a message! Whether it’s about the sci-fi adventure, the world of sky pirates, or upcoming projects, I’d love to hear from you. 


For media inquiries, collaboration requests, or anything official, feel free to reach out via acbishkey@halcyondaysnovel.com. 


I’ll get back to you in between wrangling this Colossus (of a story*). 


*Please don't judge me based on that joke.** 


**Ok, fine, you can judge me, but buy the book first.

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Stay updated on new developments for Halcyon Days: The Colossus. Request ARC access and get ready for an exciting sci-fi adventure featuring sky pirates (links will be shared via BookSirens or NetGalley).

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