曾经有一条河流过森林。在大熊来之前，这条河才知道自己有冒险的能力。但是一个人冒险本身并不好玩，于是小青蛙，小乌龟，河狸，浣熊和鸭子也加入进来。

这些截然不同的动物从下游出发，但是他们不知道他们需要彼此，直到这条河的到来。

A Caldecott Honor Book!

A cheerful and action-packed adventure about the importance of friendship and community from a successful author and illustrator duo!

Once there was a river flowing through a forest. The river didn't know it was capable of adventures until a big bear came along. But adventures aren't any fun by yourself, and so enters Froggy, Turtles, Beaver, Racoons, and Duck.

These very different animals take off downstream, but they didn't know they needed one another until thankfully, the river came along.

This hilarious picture book and heartfelt message celebrates the joy and fun that's in store when you embark together on a ride of a lifetime.