The case of the million-dollar mystery

Description:

Eddie Becker has the idea of a lifetime, and creates plans for what he promises is going to be a million-dollar invention. Then the plans get stolen. Worst of all, after Jigsaw does some digging, he suspects the principal may be the thief! Now Jigsaw has to invent a gadget of his own to find out the truth.

subjects: Schools,  Juvenile fiction,  Inventions,  Mystery and detective stories,  Fiction,  Children's fiction,  Schools, fiction,  Inventions, fiction,  Schools -- Fiction,  Schools -- Juvenile fiction,  Inventions -- Juvenile fiction