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Dark Eagle IX: Acheron

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In Roman legend, there is a place spoken of in whispers and dismissed by reasonable men. A boundary that exists only in stories, in the fearful tales told by those who have lost loved ones to the earth's dark places.No one returns from Acheron.

But members of the Occultum have vanished. The investigation leads nowhere—no bodies, no witnesses, no trace beyond rumours that make no sense. Just whispers of men who walked into darkness and simply ceased to exist.

If the missing have truly reached that boundary, then reason says they are already dead. Logic demands it. Experience confirms it.

But Seneca knows his men. He knows their skills, their training, their refusal to surrender even when death seems certain. And so he makes a choice that others call he will follow them into the impossible.

What he finds defies everything he has learned in a lifetime of service to Rome. The darkness holds secrets that were meant to stay buried, truths that challenge the very nature of finality itself, and somewhere in that blackness, the missing men wait—alive, dead, or something between.

To find them, the Occultum must descend into a place where madness wears the face of faith, where belief becomes more dangerous than any blade, and where the question of what separates the living from the dead has only one answer.

From the bestselling Dark Eagle series comes a mission where hope battles against impossibility, where the search for truth leads into territories the mind was never meant to navigate, and where the only certainty is that some questions are better left unasked.

342 pages, Kindle Edition

Published January 18, 2026

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About the author

K. M. Ashman

143 books6 followers

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5 stars
218 (69%)
4 stars
81 (25%)
3 stars
12 (3%)
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Displaying 1 - 8 of 8 reviews
Profile Image for Ray Brown.
46 reviews
January 20, 2026
Another fantastic tale.

Another excellent chapter in the adventures of the occultum, I am really enjoying this series, the story is fast and furious keeping the reader enthralled to the end, the tale flows seamlessly from action to action arriving at an explosive climax.

I now have to wait until December for the next book.
60 reviews
January 30, 2026
Another thrilling ride

The perfect blend of Rome, characters, intrigue, history, action, and good old fun. Plot is fast pace and intelligent while keeping your interest every page along the way. Keep the books coming fast and often
Profile Image for Mr P L Hughes.
90 reviews
February 15, 2026
Acheron

Another story in this series completed and I will be swiftly moving into the next volume. The usual political intrigue, betrayal and also the value of loyalty and companionship.
22 reviews
February 18, 2026
Dark Eagle IX: Acheron

Awesome reading! K.M. Ashman knocked this out of the park once again. Filled with adventure, action and everything else. I can’t wait for the next book! Highly recommended.!
115 reviews2 followers
March 5, 2026
Evil personified

An excellent and interesting story which I found disturbing in parts which could be today especially in the fire pit.Carry on fighting the evil and providing brilliant stories.
1 review
May 20, 2026
Good story, plot and intriguing

One of the better books in the series which I really enjoyed. Set in a time of historical interest. It weaves historical characters into the stories and leaves some ends enclosed ready for another.
Profile Image for Michael.
60 reviews
February 20, 2026
Excellent, best so far in the series

The character development mixed with a plot that has so many variables kept the intrigue and interest to a five star level throughout.
Displaying 1 - 8 of 8 reviews