Jack Campbell // John G. Hemry logo

Jack Campbell // John G. Hemry

Jack Campbell (retired US Navy officer John G. Hemry) writes modern space opera, science fiction, military science fiction and fantasy.

The Lost Fleet: Leviathan coverNEW! Coming May 5, 2015
The Lost Fleet: Beyond the Frontier: Leviathan

“One of the best military science fiction series on the market.”
– Monsters and Critics

The Lost Fleet delivers thrilling combat on a grand space opera scale.

Now, in The The Lost Fleet: Leviathan, 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 A.I. 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 A.I. 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. Read a preview excerpt from Chapter One of The Lost Fleet: Leviathan.

Audiobook Released December 2014
Dragons Of Dorcastle

Dragons Of Dorcastle coverThe audio version of Dragons Of Dorcastle by New York Times best-selling author Jack Campbell was published in December 2014.

For centuries, the two Great Guilds have controlled the world of Dematr. The Mechanics and the Mages have been bitter rivals, agreeing only on the need to keep the world they rule from changing. But now a Storm approaches, one that could sweep away everything that humans have built on Dematr. Only one person has any chance of uniting enough of the world behind her to stop the Storm, but the Great Guilds and many others will stop at nothing to defeat her. Find out more.


The Lost Fleet: Imperfect Sword cover Published - October 2014
The Lost Fleet: Imperfect Sword

The wait is over. New York Times best-selling author Jack Campbell continues his action-packed spin-off to The Lost Fleet series as the Syndicate's civil war threatens to spread even farther into the final frontier.

President Gwen Iceni and General Artur Drakon have successfully liberated the Midway Star System – but the former rulers of the Syndicate Worlds won't surrender the region without a fight. The dictatorial regime has ordered the ex-Syndicate CEOs terminated with extreme prejudice and the system's citizens punished for their defiance.

Outnumbered and led by junior officers hastily promoted in the wake of the uprising, Midway's warships are no match for the fleet massing and preparing to strike. But the Syndicate isn't the only threat facing Iceni and Drakon. Another former CEO has taken control of the Ulindi Star System, the first calculated move toward establishing his own little empire.

With Drakon's ground forces dispatched to Ulindi, Midway erupts in violence as Syndicate agents and other, unknown enemies stoke a renewed revolt against Iceni's power – leaving both her and Drakon vulnerable to trusted officers just waiting for an opportune moment to betray them. Read an excerpt from chapter one of The Lost Fleet: Imperfect Sword.


The Lost Fleet: Steadfast cover Published May 2014
The Lost Fleet: Steadfast

Published in May, 2014, The Lost Fleet: Steadfast is the latest adventure from Jack Campbell's Lost Fleet series. The New York Times best-selling author continues the story of Admiral John "Black Jack" Geary and the crew of the Dauntless now that they have managed to safely escort important alien representatives to Earth.

But before they can get home, two of Geary's key lieutenants vanish. The search for his missing men leads Geary on a far-flung chase, ultimately ending at the one spot in space from which all humans have been banned: the moon Europa. Any ship that lands there must stay or be destroyed – leaving Geary to face the most profound moral dilemma of his life... and a danger much greater than anyone expected: a mysterious threat that could finally force the Alliance to its knees. Read an excerpt from The Lost Fleet: Steadfast.


The Lost Stars: Perilous Shield cover Published October 2013
The Lost Stars:
Perilous Shield

Published in October, 2013, The Lost Stars: Perilous Shield is a thrilling spin-off from Jack Campbell's Lost Fleet series. Now the New York Times bestselling author returns with the next chapter in the overthrow of the Syndicate Worlds' oppression. Read an excerpt from The Perilous Shield.


The Lost Fleet: Guardian coverPublished May 2013
The Lost Fleet: Guardian

Admiral Geary's First Fleet of the Alliance has survived the journey deep into unexplored interstellar space, a voyage that led to the discovery of new alien species, including a new enemy and a possible ally.

Now Geary's mission is to ensure the safety of the Midway Star System, which has revolted against the Syndicate Worlds empire—an empire that is on the brink of collapse. Read more about The Lost Fleet: Guardian



May 5, 2015

Lost Fleet:
Read Chapter 1

Dragons of Dorcastle Audiobook
More Info

News & Upcoming Appearances

Annapolis Book Festival
Saturday April 25, 2015 from 2:00-3:00 pm.
I will be one of three authors on a panel discussion with Catherine Asaro about “Aliens, Dragons And Intergalactic Private Eyes.” 534 Hillsmere Drive, Annapolis, MD 21403

Dragons Of Dorcastle
December 2014: Audiobook version of Dragons Of Dorcastle released. Order Now!

October 2014
Lost Fleet:
Imperfect Sword
Read Chapter 1

September 2014
Dawn's Last Light
A star-spangled short story
by John G. Hemry

May 2014
The Lost Fleet: Steadfast
Chapter One

January 2014
The War
Of The Worlds,
“Chapter 18”
A new short story by John G. Hemry

Eligible For A Hugo Award This Year

October 2013
Lost Stars:
Perilous Shield
Chapter One

May 2013
The Lost Fleet:
First Chapter

© Copyright 2010-2015, John G. Hemry. All Rights Reserved.    Privacy Policy     Website Usage Terms & Conditions
Website by Workable Web Solutions, LLC. © Copyright 2013-2015. All Rights Reserved.