Kai and Nya have always worked together closely as brother and sister.
Can the two ninja work together to overcome the past and face the future? This all-new chapter book includes three original stories about the ninja and full-color illustrations..
The nefarious Time Twins soon reveal long-buried secrets from Kai and Nya\'s family\'s history.
But that was before the return of Krux and Acronix.
Kai and Nya have always worked together closely as brother and sister