A jungle-based fable with animal characters, incorporating principles of systems thinking. Billibonk the elephant works with two mice, Frankl and Tori, to find out why the jungle is getting darker. They discover that chimpanzees in the jungle have changed their behavior. The bad behavior of young chimps, including bullying, has torn the community apart. Billibonk, Frankl, and Tori have to find a way to help the chimps rebuild their community.

This is the fourth book in the Billibonk series of children's fables.