Derek and his friends want to be ninjas. They start going to a dojo where all they do is stand and be still. Not their idea of fun but Derek does begin to learn to be quiet. Murals have been popping up around town of a Minotaur. Derek sees clues everywhere and suspects many people. But is he right? Also Carly is directing the school play and is using the American Revolution as the theme. Derek "volunteers" then unvolunteers when he learns that John Adams was married to Abigail Adams which part is being played by Carly. Will the play ever happen?

I love this series. It is funny. The characters are great. This can be read as a standalone but it is better to read in order of the series especially important to learn about Frank. I laughed when Derek and Matt dyed their ninja clothes. I also chuckled when Derek learns his part will be reading letters with Carly which were written by John and Abigail Adams, including the love letter parts. I enjoyed seeing Frank again. I also liked when Derek's dad goes with him to spy as ninjas.

This is such a fun series. Perfect for girls and boys over 8. ( )