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 no delinquent. Can they bring the true troublemaker to justice, or will Caleb be forced to take the fall?

Tech Team and the 3-D Danger 2015, Raintree, Oxford

ISBN-13: 9781474700191

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