Pattern Classification Using Ensemble Methods

梅樂蒂在墓園的一角發現一棟廢棄老屋，還有一名神祕男孩海爾藏身其中。海爾聲稱自己是見習間諜，正秘密監視一名當地罪犯。但馬修與傑克可不相信這套說法，決定反過來觀察他，逐步揭開埋藏在社區中的驚人祕密。Return to the wonderful characters of beloved, bestselling, award-winning THE GOLDFISH BOY, one of the most talked-about debut children's books of recent years. Melody Bird has discovered an old abandoned house in the corner of the graveyard, and a mysterious boy hiding out there... Hal tells her that he's a spy-in-training, using the house as a base for his undercover surveillance of a known local criminal.Her friends Matthew and Jake don't believe that a teenager would be entrusted with this mission and turn the tables to spy on him, uncovering secrets and unravelling a mystery as they go.

本書是《金魚男孩》作者莉莎・湯普森深受喜愛的人物再登場，帶來一段關於謎團與友誼的感人故事。梅樂蒂在墓園的一角發現一間被遺忘的小屋，還有一位神秘的少年藏身其中。對方自稱是見習間諜，正在監視一名當地罪犯。但這一切聽起來太不可思議，於是梅樂蒂與朋友馬修、傑克開始調查真相。在追查過程中，孩子們不只發現隱藏的祕密，也一步步學習什麼是信任、勇氣，和面對現實的力量。一部結合懸疑與情感的成長小說，適合喜歡解謎與思考的中高年級讀者，是一趟令人難忘的閱讀旅程。Return to the wonderful characters of beloved, bestselling, award-winning The Goldfish Boy, one of the most talked-about debut children's books of recent years. The Magpie Riddle was previously published as The Graveyard Riddle. Melody Bird has discovered an old abandoned house in the corner of the graveyard, and a mysterious boy hiding out there...Hal tells her that he's a spy-in-training, using the house as a base for his undercover surveillance of a known local criminal. Her friends Matthew and Jake don't believe that a teenager would be entrusted with this mission and turn the tables to spy on him, uncovering secrets and unravelling a mystery as they go. A clever, very moving mystery for young readers to help solve "One of our most inventive writers for children"

Lisa Thompson returns to the world of her acclaimed novel The Goldfish Boy with this page-turning mystery.Melody Bird has discovered an abandoned old building in the corner of the graveyard...Though it's dark and creepy, she can't resist its pull. When she goes to explore, she finds a mysterious boy hiding out there. Hal tells Melody that he's a spy, using the house as a base for his undercover surveillance of a nearby suspected criminal. He's very secretive about the details, but Melody comes to trust him and starts helping him with his mission.Melody is determined to decode the strange riddles Hal finds hidden in the graveyard, but her friends Matthew and Jake question Hal's story. They decide to turn the tables and find out the truth about him, uncovering the biggest mystery of all...This extraordinary novel set in the world of The Goldfish Boy is a page-turning mystery with a sensitive story about friendship and trust at its core.