Massif

A Novel

By Garth Nix

On Sale: 9/8/2026

From New York Times bestseller and master of speculative fiction Garth Nix comes his first foray into adult science fiction with a brilliant and poignant stand-alone story of sentient starships, galactic warfare, and the bonds a crew forms far, far from Earth.

Caught me a mountain Rode it to the stars

It’s business as usual for Ship Leader Parnell Shi-Sawahla and the crew of the corvette Sassafras. Ride a Massif to a new system, fight the enemy, repeat. For more than two hundred years humans have been hitching rides on these sentient, starfaring mountain ranges, colonizing planets and exporting an on and off again war between Earth and Mars.

But the big questions are always there, behind every battle, every new colony, every new star system discovery.

Why do the Massifs carry humans to the stars?

Why do they help us export our wars?

What’s in it for the Massifs?

Ship crews aren’t supposed to ask these questions, they aren’t supposed to think about these questions, and they definitely aren’t supposed to go deep and talk to Massif avatars. But now Parnell and his tight-knit crew must try to find the answers, to save not only themselves but the future of humanity.

ISBN: 9780063292017
Imprint: Harper Voyager
On Sale: Sep 8, 2026
List price: $39
No of pages: 352
Trim Size: 1.000 in (w) x 1.000 in (h) x 1.000 in (d)
BISAC 1: FICTION / Science Fiction / Space Opera
BISAC 2: FICTION / Action & Adventure
BISAC 3: FICTION / Science Fiction / Military

Garth Nix

Biography

Garth Nix is an award-winning and New York Times bestselling author whose beloved Old Kingdom fantasy series begins with Sabriel. His many other novels include Shade’s Children and A Confusion of Princes, and he has written such children’s series as The Seventh Tower and the Keys to the Kingdom, as well as co-writing TroubleTwisters and Have Sword, Will Travel with Sean Williams. His work has been translated into forty-two languages and has sold more than seven million copies. 

Ray Porter

From New York Times bestseller and master of speculative fiction Garth Nix comes his first foray into adult science fiction with a brilliant and poignant stand-alone story of sentient starships, galactic warfare, and the bonds a crew forms far, far from Earth.

Caught me a mountain Rode it to the stars

It’s business as usual for Ship Leader Parnell Shi-Sawahla and the crew of the corvette Sassafras. Ride a Massif to a new system, fight the enemy, repeat. For more than two hundred years humans have been hitching rides on these sentient, starfaring mountain ranges, colonizing planets and exporting an on and off again war between Earth and Mars.

But the big questions are always there, behind every battle, every new colony, every new star system discovery.

Why do the Massifs carry humans to the stars?

Why do they help us export our wars?

What’s in it for the Massifs?

Ship crews aren’t supposed to ask these questions, they aren’t supposed to think about these questions, and they definitely aren’t supposed to go deep and talk to Massif avatars. But now Parnell and his tight-knit crew must try to find the answers, to save not only themselves but the future of humanity.

ISBN: 9780063292017
Imprint: Harper Voyager
On Sale: Sep 8, 2026
List price: $39
No of pages: 352
Trim Size: 1.000 in (w) x 1.000 in (h) x 1.000 in (d)
BISAC 1: FICTION / Science Fiction / Space Opera
BISAC 2: FICTION / Action & Adventure
BISAC 3: FICTION / Science Fiction / Military

Garth Nix

Biography

Garth Nix is an award-winning and New York Times bestselling author whose beloved Old Kingdom fantasy series begins with Sabriel. His many other novels include Shade’s Children and A Confusion of Princes, and he has written such children’s series as The Seventh Tower and the Keys to the Kingdom, as well as co-writing TroubleTwisters and Have Sword, Will Travel with Sean Williams. His work has been translated into forty-two languages and has sold more than seven million copies. 

Ray Porter