Nnedi Okorafor's acclaimed first novel for middle grade readers introduces a boy who can access super powers with the help of the magical Ikenga. Nnamdi's father was a good chief of police, perhaps the best Kalaria had ever had. He was determined to root out the criminals that had invaded the town. But then he was murdered, and most people believed the Chief of Chiefs, most powerful of the criminals, was responsible. Nnamdi has...