This is the first in a series of four books that explore unexpected animal bonds. In this book you'll meet four unlikely pairings, including Billy and Lilly. Billy the boxer adopted Lilly the goat when she was abandoned by her mother. Billy and Lilly are rarely apart since Billy has taken on the role of Lilly's protector, caretaker, and constant companion. This and the other stories in this book will enchant readers and empower them to devour the more text-heavy "grown up" style of the book, while still keeping the story easily digestable for a hestitant reader.

本書是《國家地理雜誌兒童版》系列讀本第一集，將帶領孩子探索動物之間令人意想不到的情誼。書中有四對讀者可能想都沒想過的動物好友組合，包括拳師犬比利和山羊莉莉這對情同兄妹的好朋友。莉莉還小的時候媽媽就離開她了，比利接下照顧的任務，不但保護她、養育她，更是與她寸步不離。除了他們，另外三對好麻吉的故事也同樣令人動容，娓娓道來易讀易懂，對於還在培養閱讀興趣的小讀者來說，是一本帶領他們進入文字份量較多的進階書籍。