It is first used in "Alex's Choice" by Alex. She wants to use it on Gigi but it makes the whole party and herself tell what's on their mind. Harper also finds out the truth about Gigi and nearly know the secret of Alex about being a wizard. Then it is used in "Wizard School, Part 1" by Professor Crumbs to make Alex tell the truth and "Wizard School, Part 2" by Alex to make Dr. Evilini tell all her plan to all people in the 12 ball compertion.