The protagonist of this book, Horace the elephant, is about to turn 11 years old. He decides to throw a grand birthday party and invites 11 friends to attend. The birthday feast begins at 11 o'clock, preceded by 11 games accompanied by beautiful music. Finally, 11 o'clock arrives, but Horace and his friends discover that their birthday dinner has vanished. A thief is hiding among the 11 friends—who stole the birthday party feast?
本书主人公小象贺拉斯11岁生日要到了，他决定举办一个盛大的生日派对，邀请11个朋友来参加。生日盛宴于11点钟开始，开宴前会举行11个游戏，还有美妙的音乐伴奏。好不容易熬到了11点，小象和朋友们却发现生日大餐不翼而飞了。盗贼就藏在11个小伙伴中，到底是谁偷走了生日派对的大餐呢？
本书主人公小象贺拉斯11岁生日要到了，他决定举办一个盛大的生日派对，邀请11个朋友来参加。生日盛宴于11点钟开始，开宴前会举行11个游戏，还有美妙的音乐伴奏。好不容易熬到了11点，小象和朋友们却发现生日大餐不翼而飞了。盗贼就藏在11个小伙伴中，到底是谁偷走了生日派对的大餐呢？
