Nine-year-old Aylie is very troubled by the terrible changes taking place in her older brother Tom. At the local wizardry shop, Mr. Green sells her a mysterious mirror box, promising her that the magic puzzle inside will not only make her brother a good human being, but it will also make him the Master of His Own Life. Aylie gives the magic puzzle box to Tom two days before his sixteenth birthday, hoping with all her heart that it will help him.

Tom and his friends Jake and Emma assemble the Puzzle, and they are transported to its magical realm. Aylie follows them into this incredible, strange world, where thoughts and emotions take life as fantastic Obstacles on the Path to the Mirror Door, which they must unlock in order to return home.