Thistledown cozy sci-fi romance

Welcome to Thistledown.

A domed moon settlement full of greenhouse light, practical tenderness, odd little jobs, and standalone love stories arriving fast enough to keep the growlights warm.

Thistledown series art showing cozy greenhouse domes beneath stars and a ringed planet
One settlement. A growing shelf of soft landings. Stories by Sage Halcyon

Low dread, high wonder

Space can be vast without being cruel. These stories keep the awe and leave room to breathe.

Romance with roots

Slow-burn connection, emotional safety, competent people learning how to stay.

Series-friendly reads

Each Thistledown book has its own couple, its own ending, and another little window into the dome.

Start here

Find your next soft landing

Two series, one promise: low dread, high wonder, and love stories that leave the lights on.

New to Sage?

Begin with Thistledown

Each book is its own complete romance, but Book 1 opens the dome doors and lets the settlement grow around you in order.

Active

Thistledown

Standalone romances set in a small domed settlement where each book follows a new couple and the town keeps growing around them.

Cover art for The Longwake

In development

The Longwake

A new Sage Halcyon series is taking shape beyond Thistledown, beginning with Last Call, Long Haul. Release timing and preorder details are still forthcoming.

Latest releases

Fresh from the shelf

The newest and next-up Sage Halcyon books. For the whole catalog, use the reading order.

Cover of The Last Legible Page by Sage HalcyonOut now

The Last Legible Page

Thistledown • Book 4

archive romanceslow burnguarded heartsfound evidence

Sable keeps Thistledown's archive quiet and orderly. Rook arrives with a water-damaged crate, a history that failed him, and one valuable secret that could send him running.

Cover of Strays and Other Miscalculations by Sage HalcyonOut now

Strays and Other Miscalculations

Thistledown • Book 5

animal caretakingcourier mistakeforced proximityfound strays

Robin has never met a stray they could not take in. Kit arrives with one courier mistake, five off-world creatures, and a plan to leave before care turns into staying.

Cover of Seam and Stay by Sage HalcyonOut now

Seam and Stay

Thistledown • Book 6

mending shopforced proximitywedding commissionchoosing to stay

Sparrow's mending shop is built on careful hands and quiet usefulness. Cas arrives with ruined wedding silk, a trade-guild debt, and eleven days to help make something beautiful hold.

Portrait of Sage Halcyon in a cozy greenhouse observatory

About Sage

Hello from the greenhouse deck.

Sage Halcyon writes science fiction romance for readers who want the wonder of space without the dread: ships with herb gardens instead of weapons bays, crews who take care of each other, and love stories that unfold slowly enough to actually enjoy the view.

The Thistledown books orbit a small domed settlement where every romance stands on its own, but the town keeps growing around them, one repair, seedling, and soft landing at a time.