Den första historien kan vara " Ön av en " av Eve Bunting
When an asteroid threatens to destroy their space island, the sole survivors of the destruction of Earth must find a new place to go.
Citat från Google-boken :
"There were nine hundred of us using up supplies faster than we could recreate them. Seth's father said it was a pity we weren't all smaller. We'd need less space, less food, less energy. Maybe all experiments start with crazy ideas." Seth was beginning to understand. "The R Factor. The Reduction Factor. If it worked we wouldn't even know. We'd all become small together. There would be no freaks." "Exactly."
Jag ser inte vilken (om någon) skulle kunna vara den andra historien, men de andra böckerna från serien "Creative science fiction" är: "Earthers Day", "The Followers", "The Mask", "The Mirror Planet", "The Robot People", "Space People" och "The Undersea People" (samma författare).