Dr. Drabble's Amazing Invisibility Mirror — Sigmund Brouwer

PJ and Chelsea are going around the world with their missionary parents and Dr. Drabble's brilliant all-in-one traveling apparatus. Dr. Drabble has invented a mirror that makes PJ and Chelsea invisible- and they trot off tho explore Japan? But they soon discover that being invisible has its drawbacks, and realize that taking without paying is always wrong.