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.
