Wool - Part One

 is the first novella in author Hugh Howey's Silo Saga series, originally published as an "eBook" on July 30, 2011.

Synopsis
Thousands of them have lived underground. They've lived there so long, there are only legends about people living anywhere else. Such a life requires rules. Strict rules. There are things that must not be discussed. Like going outside. Never mention you might like going outside.

Or you'll get what you wish for.