Gills- Prologue

Annie is different. Sometimes, just rarely, it's a good kind of different. But most times, like today, it's a bad different. Annie saves a drowning boy in the local swimming pool, and then slips away, unnoticed. But the boy, Luke, remembers her. He starts asking questions.He knows that something is different. And he's determined to find out.
The question is; will her secret STAY a secret?