Endeavour

Ark Royal, Book 18

By: Christopher G. Nuttall

Narrated by: Ralph Lister

For generations, the human race has feared an encounter with an alien race so advanced their technology might as well be magic. And yet, no such alien race has been encountered....

...Until now.

During the Virus War, human explorers discovered proof of alien technology that was beyond human understanding, technology so strange it was impossible even to guess at its function. Now, in the aftermath of the war, HMS Endeavour embarks on a mission to the core of the alien civilization....

...And discovers a mystery older than the human race itself.

©2022 Christopher G. Nuttall (P)2022 Audible, Inc.

Waiting for the next title Ark Royal #19 The Lone

An Incredible Build-Up — Now We Need the Final Two Books in Audio

Endeavour (Ark Royal, Book 18) is one of the most ambitious entries in Christopher G. Nuttall’s Ark Royal series. The discovery of two alien Dyson Spheres—one shattered, one impossibly intact—elevates the story from military space opera to something grander, almost mythic in scale.

The intact sphere, maintained by incomprehensible super-technology and inhabited by humans taken from Earth hundreds of thousands of years ago, is one of the most fascinating concepts in the series. The tension builds as HMS Endeavour narrowly escapes, leaving behind a mystery that is too dangerous—and too important—to ignore.

Book 18 feels like the calm before the storm. A multinational task force heads back to unlock the secrets of the spheres, while political rivalries and human ambition threaten to turn discovery into disaster. The sense that someone—or something—may still be watching adds a layer of quiet dread that lingers long after the final chapter.

And here’s the key point: this is clearly setting up the climax of the entire saga.

Book 19 — The Lone World (published March 2024) — continues the story and is already highly rated in paperback (4.6 stars with over 1,000 reviews). Readers clearly appreciate where the narrative goes next.

Book 20 — Judgement Day (published March 2024) — concludes the series and currently holds a strong 4.5-star rating with hundreds of reviews. The premise alone is electrifying: after uncounted millennia, the Builders have returned. What began as exploration becomes a reckoning — not just for humanity, but for every known race.

The Builders have returned.
It is Judgement Day.

For those of us who have followed this epic series in audio format, the build-up in Endeavour demands completion. Books 19 and 20 have been available in paperback for years and are clearly well received by readers.

So Audible — what are you waiting for?

The spheres are waiting.
The Builders have returned.
And listeners are ready for the finale.

A good advanced Alien story.

I am a big fan of this author. This story is a good start of a mysterious super advanced alien story. There are other Dyson sphere stories and this one is an interesting addition to them. I very much like the forerunner story arc in general. Looking forward to future installments.

Very good storyline

I have enjoyed the vast majority of the series and highly recommended it to all military / sci-fi folks .

I liked how mysterious the spheres were

While the virus was very weird it was a good antagonist. I was really great. I liked it

I like this series but he seems to be running out of ideas

This dude reuses chunks of text over and over again in these books. Not sure if he’s paid by the word or what. I like this series but he needs an editor.