Three men, each driven by secret reasons, volunteered to take the strangest trip since the beginning of time:

GORDON—filled with a need for power, enough power to wipe out the memory of an earlier terrible shame.

LOCKWOOD—to whom life was worth very little without Susan—maybe it was worth nothing at all.

STANTON—a man haunted by the knowledge that a special and mysterious fate awaited him.

Behind them were their pasts. Ahead of them—infinity.

In this different and suspense-filled novel, the author of Donovan’s Brain tells the story of a strange quest whose outcome might mean the difference between survival and extinction for mankind.