When thinking about Ninjas people often picture deadly killers wearing black clothing. However, while ninjas could be fierce and skilled warriors, they weren't just assassins who sneaked around in the dark. They more often worked as spies and secret agents who gathered intelligence and information on enemy clans. Dynamic illustrations and engaging tales of ninja warriors teach readers what it was like to be a stealthy secret agent in Medieval Japan.

When one thinks about the Vikings, usually images of savage fighters arriving in longships to raid villages come to mind. But the Vikings weren't just violent invaders trying to steal treasure. These Norse warriors were also master sailors and explorers looking for new lands to farm and colonize. Dynamic illustrations and entertaining tales of famous Viking warriors teach readers about the lives and goals of these fierce Scandinavian raiders.