Third grader and inventor extraordinaire Ada Lace is on spring break. But it’s just a little less relaxing than she’d imagined. Nina is beside herself with excitement about meeting her favorite artist and enlists Ada and Mr. Peebles’s coding-whiz nephew to help revamp her online portfolio.

When Nina finally meets Miroir, he snubs her, and her confidence is shaken—but not enough to miss the art show opening. While there, Ada spots a suspiciously familiar painting that may mean Miroir isn’t the original he claims to be.

Will the friends be able to reveal the artist’s true nature, before he fools someone else?

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