As far as Emily Pickering knows no-one's ever told her a secret, not a soul. So when her sister, Laura, boasts about all the secrets she been told, Emily is crestfallen. One evening, when Laura discovers that Emily's been listening-in on her private conversations with her friends, she's very cross and issues a gruesome warning, which sends Emily into a proper panic! But what has Laura threatened to do that's so awful, and will Emily ever get to know a secret?