(Ages 5-8) The \"Princess of J-Pop\" Akiko Yosano is getting married at your grandparents' inn. Akiko is promised the largest diamond, and the Jewel Ninja is on the loose. Luckily, your grandparents met at ninja school. Will you be brave enough to fight off a band of nunchuck-wielding ninjas, and save the wedding cake? | Your Grandparents are Ninjas by Anson Montgomery, Paperback | Indigo Chapters