At the edge of the galaxy, shadows gather. The true dark, not merely the absence of light. At the vanguard of its advance, the youngest of a near-immortal race is flung into the fulcrum of cosmic history. In order to solve the mystery of the shadows, he must first unravel the riddle of his species' existence, a secret which has been well hidden for over 20,000 years. What he finds will change everything. From the author of Rewired comes an adventure into deep space, both without and within.