Bøger i Lightning Bolt Books (R) -- Ni serien

At ninja competitions, athletes jump, climb, and flip their way through a twisted obstacle course. Explore the history behind the wild sport of ninja and its connection to ninja of the past.

Capitalizes on the popularity of modern ninja competitions to explore a fun topic in an educational way

Capitalizes on the popularity of modern ninja competitions to explore a fun topic in an educational way

Capitalizes on the popularity of modern ninja competitions to explore a fun topic in an educational way