He thought once more about the beginning six years ago, about why he was still alive, the last of his kind. The alien ships had struck Earth suddenly, without warning. Their attack had been thorough and deadly. In a matter of hours the aliens had accomplished their clever mission--and the men and women of Earth were destroyed. A few survived, he was certain. He had never met any of them, but he was convinced they existed. Los Angeles was not the world, after all, and if _he_ escaped so must have others around the globe. He'd been working alone in the drains when the alien ships appeared, finishing a special job for the construction company on B tunnel. He could still hear the weird sound of the mammoth ships and feel the intense heat of their passage. Hunger had forced him out and overnight he became a curiosity. The last man alive. For three years he was not harmed. He worked with them, taught them many things, and tried to win their confidence. But, eventually, certain ones came to hate him, to be jealous of his relationship with the others. Luckily he had been able to escape to the drains. That was three years ago and now they had forgotten him. His later excursions to the upper level of the city had been made under cover of darkness--and he never ventured out unless his food supply dwindled. Water was provided by rain during the wet-months--and by bottled liquids during the dry. He had built his one-room structure directly to the side of an overhead grating--not close enough to risk their seeing it, but close enough for light to seep in during the sunlight hours. He missed the warm feel of open sun on his body almost as much as he missed the companionship of others, but he could not think of risking himself above the drains by day. Sometimes he got insane thoughts. Sometimes, when the loneliness closed in like an immense fist and he could no longer stand the sound of his own voice, he would think of bringing one of them down with him, into the drains. One at a time, they could be handled. Then he'd remember their sharp savage eyes, their animal ferocity, and he would realize that the idea was impossible. If one of their kind disappeared, suddenly and without trace, others would certainly become suspicious, begin to search for him--and it would all be over. Lewis Stillman settled back into his pillow, pulling the blankets tight about his body. He closed his eyes and tried not to listen to the distant screams, pipings and reedy cries filtering down from the street above his head. Finally he slept. * * * * *