Return of the homework machine /
Dan Gutman.
- 1st ed.
- New York : Simon & Schuster Books for Young Readers, c2009.
- 162 p. ; 22 cm.
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.