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Publisher's Summary

The Lost Fleet delivers thrilling combat on a grand space-opera scale. Now Admiral John "Black Jack" Geary embarks on a brand-new mission - to defend the Alliance from itself - in New York Times best-selling author Jack Campbell's latest action-packed novel....
Two Syndicate World star systems have fallen prey to a mysterious fleet of warships - a fleet controlled entirely by artificial intelligence - that is now targeting Alliance space. The warships are no mystery to Geary. They were developed by his government to ensure security but malfunctioned. If the Syndics learn the truth, the war with the Alliance will resume with a vengeance.
As the government attempts to conceal the existence of the AI warships - and its role in their creation - Geary pursues them, treading a fine line between mutiny and obedience. But it soon becomes clear that his fleet is no match for the firepower of the machine-piloted armada.
With the help of the Dancer species of aliens, Geary has tracked the AI ships to their secret base in the supposedly mythical Unity Alternate star system where his fleet, the last hope of the Alliance's future, will end the conflict at any cost....
©2015 John G. Hemry (P)2015 Audible Inc.
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Critic Reviews

"One of the best military science fiction series on the market." (Monsters and Critics)
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Customer Reviews

Most Helpful
5 out of 5 stars
By Tizroc on 05-05-15

The Alliance Strikes Back!

This is perhaps one of the most poignant books in the series thus far. Yes as a wise man once said "Great men are forged in fire. It is the privilege of lesser men to light the flame. Whatever the cost." This time Geary and his closest must pay a high price to save the Alliance from itself.

Leviathan was brilliant. I loved every second, even the emotionally painful parts. I have been feverishly wanting a book that dealt with the political pieces of the Alliance. Boom, here it is! Yet every little twist and turn of the political knife could have jumped off the pages of today's newspapers. Political responsibility.. what is it? Who is responsible? Who holds the reigns?

I am disapointed that Mr. Hemry (Jack Campbell) no longer does the Audio introduction for each book... but that is such a small complaint against such brilliant writing. Thank you for giving us a quick peek into your imaginative world.

As always Christian Rummel personifies the people of this series. His work in bringing these characters to life has shown he is a master at his craft.

Just Brilliant.

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15 of 15 people found this review helpful

4 out of 5 stars
By MasterTater on 05-09-15

Great Story/Conclusion?

Not certain if this is the end of the series or not but it does feel like there is closure here. More great detailed fleet battles against a very challenging enemy. I would love to get more details on certain detainees and factions in the alliance and to see what the outcome and fallout entail ultimately. Over all though another great Black Jack story!

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8 of 8 people found this review helpful

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Customer Reviews

Most Helpful
5 out of 5 stars
By Jerry Illingworth on 02-21-18

Magnificent saga.

Great story with strong characters,very well constructed themes and edge of your seat action sequences. I gave it five stars as a good story arc, but I feel it has been left hanging a little, as now I think we need a trip to Unify to sort out the main theme of distrust and disaffection between the frontline officer Corp and the politicians. Room for one more book in this saga perhaps?

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5 out of 5 stars
By Amazon Customer on 12-03-17

stunning conclusion

loved this book. loved this series. I can't believe I actually got all the books. give this author a Bells coz overall it was done brilliantly. #TeamShamrock #TeamDancers #TeamGeary ....now what do I do with my time?

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Customer Reviews

Most Helpful
5 out of 5 stars
By Thesle on 08-23-15

Jack Campbell's most impressive yet

When you get into this book, after all that has been written before it, you enjoy the story for the characters interaction but wonder if the plot that awaits you will be a generic combination of what you've already heard.

Nothing could be further from reality, though. This book week keep you interested till the very end. It brings a lot more emotion to the story as well, bringing the characters back from the brink with elements that are unique, while silk being rooted in the science established in previous books.

For those who have continued with this series, this book is a must and won't disappoint. for those who haven't started this series, grab Dauntless and be prepared for quite a ride.

The narration is also superb, contributing to the overall quality of this series.

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