Karen's Magician (Baby-Sitters Little Sister #55‪)‬

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation!Poof!Karen and Andrew love magic--especially after they see Mr. Wizard perform. Andrew even gets to help with a penny trick. But oops! The magician forgets to return Andrew’s special penny. And now Andrew thinks his penny has disappeared forever. He thinks Mr. Wizard is really magic. Can Karen help Andrew learn the truth about magic? Or has Andrew been tricked for good?