Add some mystery and adventure to your December

December can be a crazy month, so why not escape with a little mystery and adventure? This book promotion features over a hundred free titles. You’ll find sci-fi, fantasy and thrillers, all steeped in problem-solving, high stakes and fast-paced action — an ideal antidote to the stresses of the season. But don’t hang around — these offers disappear at the end of the year. Click here to find your perfect escape in a free book.

Banner for mystery and adventure book promotion, December 2025

Get the Dominions box-set on Kobo for only 99c

If you’re a Kobo customer, I have a bargain for you. As a part of their ‘Skip the Line’ sale, my Dominions Box-Set is reduced to 99c (or 99p). The set includes the first three novels in the series (Dark Glass, Dead Flesh and Deep Water), along with the prologue short story Gatekeeper. If you’re in the mood for a dark Dystopian thriller, featuring a hired killer questioning his choices as he gets pulled into events that threaten everything he holds dear, visit Kobo to get this bargain now.

Image of the Dominions Box-Set, containing the first three novels in the series (Dark Glass, Dead Flesh and Deep Water)

Please note that this offer is only available in certain territories (US and Canada, possibly others), and runs until 24th November.

Looking for a new sci-fi/fantasy book? Look no further

With almost a hundred titles, this promotion has everything for sci-fi/fantasy readers. And the books are free. Yes, you need to sign up for the author’s newsletter to get each book, but there’s nothing stopping you from unsubscribing once you’ve downloaded the book. And you might just find your next favourite writer.

So check out the books here.

Explore the dark side of Khonsu: a sci-fi detective story

A city-sized generation ship tearing through the void of space, seeking planets for humanity to colonise. But onboard, life goes on, as it has for a couple of millennia. And life on the vast craft known as Khonsu is far from perfect. While the authorities do their best, the dark underbelly of Khonsu’s society churns away.

Such a place needs a dark hero. Investigative consultant Grim (don’t call him a detective‌—‌he doesn’t like it) isn’t a hero, but he’s the closest Khonsu’s got.

Banner image for Grim Khonsu, showing a noir detective in hat and coat on one side, and a space-ship heading towards a planet on the other

Grim Khonsu is a new serialised story, a chapter appearing each week. If you like your sci-fi soaked in noir, or if you like your detectives pulled between humans and technology, then check out Grim Khonsu. You can read the first chapter at twiain.substack.com/p/chapter-1.

And if you want subsequent chapters delivered straight into your inbox for free, sign up for my Substack at twiain.substack.com/.

Did you know you can get bargain books in the ‘Tales of Dominions’ Kickstarter?

With about a week left on the Tales of Dominions Kickstarter, we’re close to funding. A huge thank-you to everyone who’s pledged so far.

But did you know that you can get more than Tales of Dominions? At every reward tier (including the ‘just because…’ £1 tier) you have the opportunity to buy add-ons. These include the following:

3-d image of the 'ShadowTech' box-set, featuring seven books by TW Iain

The complete ShadowTech series‌—‌all seven novels, at a reduced price

The complete Shadows trilogy‌—‌for the price of a single book

3-D image of the 'Shadows' box-set by TW Iain
Collage of all nine covers in the main 'Dominions' series by TW Iain.

All nine novels in the Dominions series‌—‌for only £15

And that’s not all…

Nexus is a collection of one novella and two short stories. Previously published in various anthologies, these tales have been re-edited, and are now presented with author notes and illustrations. Nexus is a Kickstarter exclusive, and is available in both ebook and paperback.

Ereader showing cover art for 'Nexus' by TW Iain, featuring a hand reaching out of smoky darkness.

Intrigued? Then click here to check out the Tales of Dominions Kickstarter.