conducts a mission to the legendary if-nodes of Antan - the center of time and space where unrealized histories are stored. His assignment: to enter the mind of a key person in a historically crucial moment to affect his host's motivation - without forcing his choices - to make possible an alternative outcome. And Pan does not enjoy immunity from the consequences. His existence, too, is at stake!

Pan is one of the great heroes of science fiction - a lusty, resourceful adventurer whose wit and seeming recklessness
conceal a profoundly brilliant intellect.