From Emily Calandrelli—Emmy-nominated host of Xploration Outer Space, correspondent on Bill Nye Saves the World, and graduate of MIT—comes the fourth 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.

Third grader and inventor extraordinaire Ada Lace has a new social studies teacher—who loves group projects. While most of the class has constructed regular dioramas with clay and construction paper, Ada, her best friend Nina, and sometimes nemesis Milton have built a complex scale model of an historic silver mine. But when Milton reveals that he added his “old Milton touch” on their project right before turning it in, Ada worries that he has sabotaged their work.

In a desperate attempt to save their project, Ada and Nina use their combined creative and technical prowess to perform a heist and break into their teacher’s supply closet after school.

Do the two friends have what it takes to deceive the school’s security system? Or will they get caught trying to pull off this seemingly impossible mission.

Emily Calandrelli is an executive producer and the host of Xploration Outer Space, where she shows viewers the most exciting projects in the space industry today and a correspondent on the new series, Bill Nye Saves the World. Emily has a technical background with mechanical and aerospace engineering degrees from West Virginia University and Master’s degrees in aeronautics and astronautics as well as technology and policy from MIT. Emily is a professional speaker and writer and is passionate about exciting students and their families about science and space exploration. Emily is also deeply passionate about getting more girls interested in STEM and STEM careers. She lives in San Francisco. Learn more at TheSpaceGal.com.

Tamson Weston is the author of Hey, Pancakes!, illustrated by Stephen Gammell, and has over fifteen years experience in children’s book publishing. She works as a freelance editor and has edited books by acclaimed authors such as Adam Rex, Mac Barnett, and Dan Santat, among others. She has an MFA in writing and literature and enjoys running, biking, swimming, and lifting heavy things. She lives in Brooklyn, New York. Visit her at TamsonWeston.com.

Renée Kurilla is an illustrator of many books for kids, including Orangutanka: A Story in Poems by Margarita Engle, The Owls of Blossom Wood by Catherine Coe, and the Ada Lace Adventure series by Emily Calandrelli. She lives just south of Boston with her husband, their fluffy orange cat, Timmy, and their spiky hedgehog, Lemon. Visit her at Kurillastration.com.