故事敘述著一對兄妹和樹的故事，經過了一年四季，樹的變遷，葉子的色澤，溫暖的故事和孩子一起閱讀，關於四季的改變與難得的情誼。
A charming exploration of the seasons with some of Caldecott-winner Leo Lionni's beloved mice.
In January, two mice, Willie and Winnie, make a new friend: a tree. The tree tells them her name is Woody, and the mice promise to visit her all year round. As the months tick by, Willie and Winnie watch Woody soak up the rain, bloom buds into flowers and leaves, and bear fruit. By the end of the year, Willie and Winnie know they've made a forever friend who has taught them all about the seasons.
