Plot Summary:When some schoolgirls are touring a stately mansion, a priceless painting, an El Greco masterpiece disappears from the small room it was in even though no one was in the room at the time and the door was only closed for thirty seconds. Even though Maddy would love the reward being offered, she finds Jonathan reluctant to help as the painting's owner, Sylvester Le Fley, a snobby theater critic, has panned his magic shows.