The Ghost Brigades are the Special Forces of the Colonial Defense Forces, elite troops created from the DNA of the dead and turned into the perfect soldiers for the CDF's toughest operations. They're young, they're fast and strong, and they're totally without normal human qualms.

The universe is a dangerous place for humanity--and it's about to become far more dangerous. Three races that humans have clashed with before have allied to halt our expansion into space. Their linchpin: the turncoat military scientist Charles Boutin, who knows the CDF's biggest military secrets. To prevail, the CDF must find out why Boutin did what he did.

Jared Dirac is the only human who can provide answers -- a superhuman hybrid, created from Boutin's DNA, Jared's brain should be able to access Boutin's electronic memories. But when the memory transplant appears to fail, Jared is given to the Ghost Brigades.

At first, Jared is a perfect soldier, but as Boutin's memories slowly surface, Jared begins to intuit the reason's for Boutin's betrayal. As Jared desperately hunts for his "father," he must also come to grips with his own choices. Time is running out: The alliance is preparing its offensive, and some of them plan worse things than humanity's mere military defeat…

From Publishers Weekly

This fast-paced interstellar military drama doesn't quite meet the high expectations set by its predecessor, Scalzi's acclaimed Old Man's War (2005), but it comes impressively close. Shifting focus from seniors in young bodies to infants in old bodies, it follows Jared Dirac, a superhuman soldier, from unusual birth to ambiguous death. Dirac is an altered clone of Charles Boutin, a military scientist who betrayed humankind to alien aggressors, and the Colonial Defense Forces' only hope of finding Boutin lies in transplanting his memories into Dirac's brain. When the transplant seems to fail, Dirac is sent to Special Forces, known as the Ghost Brigades for their habit of creating new soldiers from the DNA of the dead. His indoctrination there comes in handy when Boutin's memories begin to surface. Scalzi pays gleeful homage to Ender's Game, The Forever War and Starship Troopers, sometimes at the expense of originality. All he needs to make the jump from good to great is to trust in his own ideas. (Mar.)
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From Bookmarks Magazine

Though it's a sequel of sorts to his 2005 debut, Old Man's War, John Scalzi's new novel is hardly business as usual. Beyond the battles and the portent of humanity's end, Scalzi plays with deeper issues of identity in an increasingly technological world in this second volume of a proposed trilogy. A switch from first person to third and one narrator (Dirac) who is unaware of his own role in the story might hold the book back from must-read status, but otherwise The Ghost Brigades gleams with the best traits of thoughtful SF.Copyright © 2004 Phillips & Nelson Media, Inc.