This picture book shows the relationship between rain and animal survival. The story begins from the title page where the dark clouds gradually cover the sun, and then it rains. The abundant rainfall becomes the source of the river, and nourishes the lushly green valley. Water flows onto the plateau and forms a pond where animals take turns drinking water. From large, ferocious animals to a herd of wildebeests, then to smaller animals, and finally to the slow tortoise. Now there is hardly any water, and the tadpole's “homeland” is endangered. At this moment of “survival,” the author out of a whim makes the animals decide the order of drinking by finger-guessing. It builds the climax and fun, and makes nature solve its own problem in the end. The river stretches in the transverse spreads. The landscape and animals are simplified into flat, brightly-colored geometrical patterns. The dotted lines indicate the direction where actions proceed. The carefully-designed image and figures are presented with momentum and playful fun at the same time. It is a pity that some of the animal figures are not clear and hard to identify. Most of the spreads are presented in panorama, but at the plot-turning part the tortoise and the tadpole are suddenly zoomed right in front. The exaggerated tension and the shift of story from the general laws of nature to the rules of children's games need to be thought over. Nevertheless, in general it still is an excellent work.