"A Merlin mission." "A Stepping Stone book." To the summer palace -- Put on your wig! -- Her imperial majesty -- Jack of Frog Creek! -- Bad manners -- Under the moon -- Follow me -- The hall of mirrors -- Me and the clown -- Joy -- More facts about Mozart and his time. Jack and Annie travel to Vienna, Austria, in 1762 where they meet the young Wolfgang Amadeus Mozart and his sister and help save the budding genius' life.