Secrets of the Ninja — David Orme

Billy Blaster gets some bad news -- his ninja friend, Wu Hoo, is a criminal! Hoo is helping a gang of evil ninjas, led by the most dangerous crook of all, Red Wolf. The police ask Billy to help, but the super hero is all alone -- and outnumbered. Even if Billy can sneak into the secret ninja lair to save his friend, he wonders if Wu Hoo even wants to be saved!