“They walk across the field. It is already noon. The sun is high in the sky, and it is very hot. Yoo! Hoo! and Goo! cross the field. They are hot and sweating. They reach the rock tired and thirsty from the effort and the sweating. But where can they find some water to relieve their thirst?”

The cavewoman Yoo! and her children Hoo! and Goo! take advantage of the beautiful day to take a walk in the forest. However, they lose their way and do not know where they are. They are hot and thirsty. This book describes their search for a familiar landmark and their way back to their cave and the nearby lake.

Esther Guggenheimer-Furman earned a Ph.D. degree in life sciences and has specialized in physiology. She has taught courses in human anatomy, physiology, pathology, endocrinology, the senses, child development, and more. Dr. Guggenheimer-Furman has written two schoolbooks on the human body for high school students and a book on nutrition for junior high students.