From Emily Calandrelli--host of Xploration Outer Space, correspondent on Bill Nye Saves the World, and graduate of MIT--comes the second novel in a brand-new chapter book series about an eight-year-old girl with a knack for science, math, and solving mysteries with technology.

Ada Lace is building a new robot She's determined to beat Milton in the upcoming robotics competition. But she's distracted--Ada finds her dad's art class impossible, while Nina is the star of the class, basking in the glory of being Mr. Lace's star pupil.

When Mr. Lace suggests that Nina put on...