It was painted white, which was unusual. Most Antarctic vehicles are painted bright orange, for ease of visibility. And it sped across the vast expanse of snow with a surprising urgency. Nobody is ever in a hurry in Antarctica. Inside the speeding white hovercraft, Lieutenant Shane Schofield peered out through reinforced fiberglass windows. About a hundred yards off his starboard bow he could see a second hovercraft—also white—whipping across the flat, icy landscape. At thirty-two, Schofield was young to be in command of a Recon Unit. But he had experience that belied his age. At five-ten, he was lean and muscular, with a handsome creased face and closely cropped black hair. At the moment, his black hair was covered by a camouflaged Kevlar helmet. A gray turtleneck collar protruded from beneath his shoulder plates, covering his neck. Fitted inside the folds of the turtleneck collar was a lightweight Kevlar plate.