"Farnell and Collins had always been two exemplary workers. I don't understand what got into them," says the director of the spaceport. A coworker adds, more quietly: "Come to think of it, they've been acting a little strange lately."
Some guards saw them do something to a rocket... and the rocket suddenly disappeared. Chased by the guards, the two men mysteriously vanished too, only to return to work a few days later as if nothing had happened at all.
Interrogated by the police, neither of them seem to give the matter any importance. What did they do? And are they really who they seem to be?