Strange things are happening at the Hubble Middle School. Someone's setting off the fire alarm, breaking into the school at night, and secretly using the school's brand-new 3-D printer. But worst of all, S.M.A.R.T.S. member Caleb is being blamed! The team will have to use their impressive intellect and best problem-solving skills to figure out this mystery and prove their friend is delinquent. Can they bring the true troublemaker to justice, or will Caleb be forced to take the fall?
Melinda Metz is the author of more than sixty books for teens and kids, including the YA series Roswell High (basis of the TV show Roswell) and Echoes. Her middle-grade mystery Wright and Wong: Case of the Nana-Napper (co-authored by the fabulous Laura J. Burns) was a juvenile Edgar finalist. Melinda lives in Concord, North Carolina, with her dog, Scully, a pen-eater just like the dog who came before her.