Somewhere in the universe there is a mysterious place—a planet where comes the Void and its Signs. They call it Ahadir, but most people don’t believe in the existence of this world—only legends and rumors multiply. They also say that there are the Red stones of the White—mysterious stones left behind after the White Plague, revered among sparky as a shrine. Any reliable information about Ahadir and its coordinates in space can make a knowing person fabulously rich. And it just so happened that on this planet, at the same time, two zeppelins crashed—the surviving passengers, having lost their memory. And another zeppelin is arriving safely too—the “Black Doctor”—and… well, read on and you’ll find out everything yourself.