Stalking the Apocalypse
by J. E. Bruce
They are A'tuu'shahn'i, the Rim's mercenaries of choice, ancient, enigmatic shape-shifters rumored to be organic machines, possibly from a different dimension altogether. Invincible, implacable, unstoppable—except to an even more ancient, equally implacable enemy from within. The human-dominated coalition fears them but can either survive without the other?