The Eighth Excalibur: An Arthurian Space Opera Adventure (The Excalibur Knights Saga Book 1)

The Eighth Excalibur: An Arthurian Space Opera Adventure (The Excalibur Knights Saga Book 1)

by Luke Mitchell

4.1 (446)

4.1 stars from 446 reviews

516 pages~8.6 hr readPublished by Luke Mitchell

$0.9990% off peak

Last checked: Apr 15, 2026

Hidden GemHighly rated but flying under the radar. Fewer readers have found this one yet.
Price history: Free $9.99Last free: 2024-12-03

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Fans of these authors will like this...

  • Brandon Sanderson
  • Patrick Rothfuss
  • John Scalzi

Fans of these books will like this...

  • The Name of the Wind
  • Old Man's War
  • Howl's Moving Castle

Perfect for you if...

  • You love the idea of Arthurian legend reimagined in space but with a protagonist who's genuinely unprepared and sarcastic about the whole thing.
  • You enjoy science fiction that doesn't take itself too seriously, with weird aliens, magic tech, and characters who banter their way through apocalypse.
  • You want a sprawling space opera that respects your time—500 pages of actual plot momentum rather than endless worldbuilding.

Maybe not for you if...

  • You prefer your fantasy completely grounded in medieval settings with zero sci-fi elements or laser swords.
  • You're looking for a gritty, serious tone—this book leans hard into humour and absurdist situations.
  • You want a standalone novel. This is book one of a saga, so you'll need to commit to the series.

About this book

Nate Arturi is an ordinary college student at Penn State—not a knight, not a king, and hardly heroic. His life changes when an ancient alien beacon activates on Earth, drawing the attention of hostile forces across the galaxy. A homeless wizard tricks him into accepting a foul-mouthed sword, and Nate is ambushed by a powerful alien creature. With an armada of alien forces descending on the planet, Nate must learn to wield the Excalibur and stop the invaders before they destroy everything he knows. The first book in The Excalibur Knights Saga, this story reimagines Arthurian legend as a space opera adventure.

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Price History

Kindle price over time. Green zones = periods when the book was free.

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Free$5.00$9.99Mar '21May '23Jul '24Jan '26
Free$9.99· Last free: 2024-12-03

Currently on sale at $0.99 — 90% off peak. Price has dropped 11 times over the last 5 years. Goes on sale roughly every 169 days. Typically stays discounted for 29 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

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#117#757,408#1,514,698Jan '20Sep '22May '24Apr '26

Currently around #152K in the Kindle store — a niche title. Sales have softened 125% recently.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

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3.5★4.3★5.0★Jun '23Nov '23Apr '24Feb '26RatingReviews

Currently 4.1★ from 446 reviews

Gaining approximately 2 new reviews per month. Rating has remained stable at 4.1 over the tracking period.

Sale Prediction

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Free$5.00$9.99Mar '21May '23Jul '24Jan '26PredictedApr '26

Actual Predicted

This book is currently discounted at $0.99. It typically returns to around $9.99.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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Luke Mitchell

1 book on Vagrant Press

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