"The Life and Adventures of Little Monkey" is an unusual book for Ossendowski, written from the perspective of a chimpanzee named Kasha who lives in the forest with her family. The book describes her life, adventures, and experiences, beginning with her childhood and her search for a new home after her family is attacked. Kasha discovers the world of humans, who enchant her with their culture and way of life. She also experiences many dangers, including attacks by wild animals and being taken to a zoo.