Return of the homework machine

After discarding their infamous homework machine, four friends, now in sixth grade, find themselves once again at the police station, this time giving testimony about an incident involving a powerful computer chip, a Grand Canyon treasure, and a dead body.

Simon & Schuster Books for Young Readers
2011
9781416954590
book
Lexile: 
700

Holdings

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825975456017421848340729062PIMC385PIMC84940F GUT100015798937721708963493
934555465531221918340729062RHFY403RHFY095094FIC GUT100015802161721708963493
961692468035121968340729062RHVO406RHVO035185FIC GUT100015802161721708963493
1904598549755817928340729062GCMS215GCMS100938FIC GUT100015825759371662467957
2179166573535617678340729062HOES26031002759FIC GUT100015825759371662467957
2195127575072722378340729062KEES273KEES101074FIC GUT100015825759371709307855