Previously Published in the STARDUST Anthology by Cynthia Shepp. Isaac, a Mark 3 Android, has one purpose after his creation-to make the lives of those he's assigned to easier. Shortly after being "woken up," he's presented to Mrs. Nelson-a frail, old woman who treats him like a son. He easily settles into life as a helper, just as he was programmed to do, until the doctors deem Mrs. Nelson in need of a second android companion. That's when Isaac...