Ptorix Empire stories

Two great powers dominate the galaxy: the ambitious Human Confederacy and the old and much larger Ptorix Empire. Where their interests collide, conflict is never far away. Add to that the fanatical Galactic People’s Republic, and peace becomes a fragile illusion.

The Ptorix Empire series delivers fast-paced space opera filled with politics, betrayal, and action—always threaded with romance. Admirals, rebels, smugglers, and scholars fight for survival and love against the backdrop of interstellar war and alien intrigue.

From the two-book epic of The Iron Admiral to stand-alone adventures like Starheart and Crisis at Validor, these stories bring you battles, conspiracies, non-humanoid aliens, and heroes who trust their wits and their hearts.

If you enjoy Star Trek or Star Wars with a touch of romance, better science, and richly built worlds, the Ptorix Empire is your next adventure.

Click on each cover for more information about the book. 

Book cover for The Iron Admiral: Conspiracy by Greta van der Rol. A man in a dark military uniform and a woman with long hair stand against a cosmic background of stars and a glowing planet. A sleek white spaceship flies below them. The title appears in bold white letters, with the author’s name in bright yellow at the bottom.
Book cover for The Iron Admiral: Deception by Greta van der Rol. A man in a dark military uniform and a woman with long hair stand against a cosmic background of stars and a glowing planet. A sleek white spaceship flies below them. The title appears in bold white letters, with the author’s name in bright yellow at the bottom.Book 1 of the Ptorix Empire series
Alt Text SEO Description Sci-fi book cover of “Starheart” by Greta van der Rol, showing a spaceship and two translucent faces in space
Alt Text SEO Description Sci-fi romance cover of “Crisis at Validor” by Greta van der Rol, showing two faces and a spaceship in a starry sky
Sci-fi adventure cover of “The Stuff of Legend” by Greta van der Rol, showing a woman and a uniformed man against a starry nebula
Sci-fi cover of “The Admiral and the Rebel” by Greta van der Rol, showing an officer and a woman facing each other with starships behind them
Sci-fi box set cover of “The Complete Iron Admiral” by Greta van der Rol, showing three humans and an alien against a starry sky
Sci-fi adventure cover of “The President’s Daughter” by Greta van der Rol, showing two armed figures and a leopard in a jungle

FAQ

What is the Ptorix Empire series about
It follows humans, Ptorix, and a few dangerous third parties as they clash over politics, territory, and survival. Expect action, battles, betrayals, and romance, all set in a galaxy where peace rarely lasts.

What are the Ptorix
They are non-humanoid aliens, conical in shape with three eyes and four arms with tentacles instead of fingers. Read more about them here.

Do I need to read the books in order
The Iron Admiral, Conspiracy then Deception tells one complete story. The other titles stand alone, each with its own characters and conflict. You can read them in any order.

Is there romance in these books
Yes. The romance is woven into the action, never replacing it. The stories balance battles, politics, and human (and non-human) relationships.

How is this series different from other space opera
The focus stays on character and consequence. The aliens feel alien, the politics matter, and the stakes are personal as well as planetary.

Which book should I start with
Begin with The Iron Admiral if you want the full political arc. If you prefer stand-alone adventure, try Starheart or Crisis at Validor.

Is this series connected to your other series
No. This universe stands on its own, with its own history, politics, and characters.