Our Infinite and Inevitable Ends is a sapphic science fiction climate thriller, a love letter to hope in the bleakest of times, combining multiverse-bending drama with a cat-and-mouse chase.
Mark your calendars, LitStackers! Our Infinite and Inevitable Ends by A. D. Sui is in presale (the best time to buy a book), and ready to hit the bookshelf on Oct. 27. 2026. Our anticipation is palpable. Published by ECW Press | Simon & Schuster, this sapphic science fiction climate novel is already making waves with early readers. Here’s a sneak peek at what’s on the cover from the publisher’s official description to early reviews that will help you pre-order your copy ASAP. Let’s dive in!
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About Our Infinite and Inevitable Ends
On a near-future Earth devastated by climate change, Dr. Cassandra Barlowe is right where she wants to be: working on an island of floating trash in the middle of the Pacific Ocean, as far away from Dr. Yana Gulsvig as possible. Cas’s research on plastic-dissolving fungi is undervalued and underfunded, thanks to the invention of deleria, a drug that allows glimpses into different timelines. For the average user, it’s a way to view lost loved ones or experience a different life, but it also offers a glimpse into worlds where humanity has solved its many global crises. Now, most science funding is dedicated to trawling these different timelines, searching for a reality with the solution to the climate devastation.
But when Yana — the world’s leading expert on deleria and Cassandra’s ex-lover — is killed in a mysterious explosion in the hub of deleria research, taking the hope of reversing climate change with her, Cas is arrested on charges of domestic terrorism. Cas must delve through timelines to piece together what happened, while watching other versions of herself and Yana live out the life they could have had — happier, more in love. As brutal government agents close in and her addiction to deleria grows, Cas has to make a choice: live in the spiraling branches of reality, seeking closure for Yana’s death until the drug shatters her mind, or live in the now, even if that means embracing her own damaged self and fighting, however hopelessly, for her own future and that of humanity.
Our Infinite and Inevitable Ends is hopeful and complex sapphic climate fiction by a sci-fi star on the rise.
Praise for Our Infinite and Inevitable Ends
“Raw, gripping, and clever, Our Infinite and Inevitable Ends exposes the intertwined heart of grief and love while charting out a roadmap for hope through a bleak and despairing world. It sucked me in and, even after the last page, refuses to let me go.”—Sierra Branham, author of Love Galaxy
“A mind altering descent into desperation. With surgical precision, Sui carves through time and space to expose the human cost of unmitigated obsession”—Andrew F. Sullivan, author of The Marigold
“A heart wrenching tale of love and loss in a dystopian setting. One of the most unique parallel reality stories I’ve read. Plus it takes place in Toronto!”—Christine Smonk, author of The Minute Givers
About A. D. Sui, Author of Our Infinite and Inevitable Ends
A.D. Sui (London, ON) is a Ukrainian-born, internationally raised speculative writer, Nebula winner, and Aurora and Theodore Sturgeon Memorial Award finalist. They are the author of The Dragonfly Gambit, The Iron Garden Sutra, and more than two dozen short stories. A failed academic and retired fencer, they spend most days wrangling their two dogs and tending to their myriad tropical plants.
You can connect with A.D. Sui on their website, Instagram and Threads.
Source: Publisher
Publisher: ECW Press | Simon & Schuster
ISBN Trade Paperback 9781770418912
Pub Date Oct 27, 2026
LitStack Spots
Here are a few more LitStack Spots to buy for your TBR stack, including The Iron Garden Sutra by A. D. Sui, The Annual Migration of Clouds by Premee Mohamed, and The Marigold by Andrew F. Sullivan.
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As an affiliate of Bookshop.org, Malaprop’s, Books-A-Million, Audiobooks.com, Chirp, 2nd & Charles, Amazon, NameHero, Envato, and Place-It, LitStack may earn a commission—at no cost to you—when you purchase through our affiliate links. We appreciate the brands we work with, and also appreciate that using our affiliate links may help you find your next great read, a book or two or more, in whatever form, while simultaneously supporting LitStack. When you use our affiliate links, you help keep LitStack running—and for that, we thank you.
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