For two thousand years, the starship Astron has search the galaxy for alien life--without success.
Only Sparrow, a young crewman uncertain of his own past, can stand against the captain, and against the lu.
He will cross the Dark, or destroy the ship trying.
The ship\'s captain--immortal, obessed--refuses to abandon the quest.
Now, just as the ship is falling apart, the only direction left to explore is across the Dark, a one-hundred-generation journey through empty space.
For two thousand years, the starship Astron has search the galaxy for alien life--without success