Free The Ghost Brigades by John Scalzi

producing metabolic heat levels that come close to denaturing the DNA. The developmental crèche fills with heat-transferring fluid packed with nanobots, which saturate the developing cells and act as heat sinks for the rapidly growing embryo.
    And still Special Forces scientists are not done lowering the percentage of humanity in their soldiers. After the biological overhaul come the technological upgrades. Specialized nanobots injected into the rapidly developing Special Forces embryo head to two destinations. Most head to marrow-rich bone cores, where the nanobots digest the marrow and mechanically breed in its place to create SmartBlood, with better oxygen-carrying capacity than true blood, more efficient clotting and near-immunity to disease. The rest migrate to the fast-expanding brain and lay the groundwork for the BrainPal computer, which when fully constructed will be the size of an aggie marble. This marble, nestled deep in the brain, is surrounded by a dense network of antennae that sample the electric field of the brain, interpreting its wishes and responding through outputs integrated into the soldiers’ eyes and ears.
    There are other modifications as well, many experimental, tested within a small birthing group to see if they offer any advantages. If they do, these modifications are made more widely available among the Special Forces and hit the list for potential upgrades for the next generation of the Colonial Defense Forces’ general infantry. If they don’t, the modifications die with their test subjects.
    The Special Forces soldier matures to the size of a newborn human in just over twenty-nine days; in sixteen weeks, provided the crèche’s adequate metabolic management, it has grown to adult size. CDF attempts to shorten the developmental cycle resulted in bodies that fried in their own metabolic heat. Those embryos and bodies that didn’t simply abort and die suffered DNA transcription errors, giving rise to developmental cancers and fatal mutations. Sixteen weeks was pushing the edge of DNA chemical stability as it was. At the end of sixteen weeks, the developmental crèche sends a synthetic hormone washing through the body, resetting the metabolic levels to normal tolerances.
    During development the crèche exercises the body to strengthen it and allow its owner to use it from the moment he or she becomes conscious; in the brain, the BrainPal helps develop general neural pathways, stimulate the organs’ processing centers, and prepare for the moment its owner was brought to consciousness, to help ease the transition from nothing to something.
    For most Special Forces soldiers, all that was left at this point was “birth”—the decanting process followed by the quick and (usually) smooth transition into military life. For one Special Forces soldier, however, there was still one more step to take.
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    Szilard signaled to his techs, who began their tasks. Wilson focused again on his hardware, and waited for the signal to begin the transfer. The techs gave the all clear; Wilson sent the consciousness on its way. Machinery hummed quietly. The body in the crèche remained still. After a few minutes Wilson conferred with the techs, then with Robbins, who came over to Mattson. “It’s done,” he said.
    â€œThat’s it?” Mattson said, and glanced over the body in the crèche. “ He doesn’t look any different. He still looks like he’s in a coma.”
    â€œThey haven’t woken him up yet,” Robbins said. “They want to know how you want to do it. Normally with Special Forces soldiers they wake them up with their BrainPals switched to conscious integration. It gives the soldier a temporary sense of self until he can create one of his own. But since there may already be a consciousness in there, they didn’t want to turn that on. It might confuse the person in there.”
    Mattson snorted; he found the idea