The time was 1421, of a warm midsummer afternoon on Corwin. Baird Ewing finished sweeping the shattered fragments of his painstakingly constructed projector into the disposal unit, looked around, put the crowbar back in the tool shelf.
Then he snapped on the housephone and said, “Okay, Laira. The experiment’s over. Thanks for helping out.”
He hung up and trotted up the stairs to the study. Laira was bent over her book; Blade stared entranced at the video screen. He crept up behind the boy, caught him suddenly with one big hand at the back of his neck, and squeezed affectionately. Then, leaving him, he lifted Laira’s head from her viewing screen, smiled warmly at her, and turned away without speaking.
Later in the afternoon he was on his way to Broughton Spacefield via public transport to reclaim his car. He was still some miles distant when the sudden overhead roar of a departing spaceship sounded.
“One of those little military jobs taking off,” someone in the bus said.
Ewing looked up through the translucent roof of the bus at the clear sky. No ship was visible, of course. It was well on its way Earthward now.
Good luck, he thought. And Godspeed.
The car was in the special parking field. He smiled to the attendant, unlocked it, climbed in.
He drove home.
Home—to Laira and Blade.