Ben Tomlin is an only child. But all that changes when his mother brings home Zan - an eight-day-old chimpanzee. Ben’s father has moved the family from Toronto to Victoria to pursue his latest research project, an experiment to determine whether chimpanzees can acquire advanced language skills. Zan will be treated as a family member and Ben's parents tell him he has a new brother. What happens is an interesting story of family dynamics. This young adult novel is special. The writing is wonderful with loads of humor and heart and the interaction between Ben and Zan is touching. There is so much that is good about this book. Oppel scores another writing winner!