When two American girls, Alysa and Julie, visit London's Windsor Castle, the day turns into a much bigger adventure than expected - they find themselves locked in for the night. Taking refuge in the royal bedchamber, the girls meet some famous (and not-so-famous) figures from English history and get a crash course in heraldry. Then things turn nasty as they come face-to-face with a pair of thieves ...This delightful, gentle and magical story by Gerda Weissmann Klein brings alive the fascinating pageantry of English history.