The invisible boy Chip intends to enter his invisible dog Max in the dog show, but when Max comes up missing, Chip and his Invisible Inc. friends suspect foul play.
Explains the developments leading up to the writing of the Constitution, what the Constitution is, and what happened during the Constitutional Convention.
Chip, an invisible boy, and his friends investigate the mysterious disappearance of yogurt-covered raisins, mixed nuts, and ginger snaps from their classroom.
Fletcher the dog detective must try to prove that Gwen did not intentionally try to make the school principal have a sneezing fit while he was honoring his promise to the students to spend the morning on the roof after they had read one thousand books.