Big Monty and the Cyborg Substitute

Fifth-grader Merlin Montgomery, AKA Big Monty, has to save his school again! Can this science-loving kid  stop a Cyborg Substitute who froze the whole class? Merlin won't be able to do it alone. He'll need help from his life-long enemy, A'lo, and his super-smart sister, Josephine. Complete with science activities and vocabulary building fun, Big Monty is sure to get even the most reluctant readers turning the next page!