In the magic treehouse series, not only in Merlin Missions, Jack and Annie found a magic treehouse. They soon discovered that in the magic treehouse there were lots of books and when they point to a picture in the book and make a wish to go there the magic treehouse just magically transports them there! They soon learned that the treehouse belongs to Morgan Le Fay from Camelot. Jack and Annie have helped Morgan with a humongous amount of missions in all places and time periods with the help of the magic treehouse. However in Merlin Missions it is not however Morgan that sends them on these missions. It is Merlin, a fantastic magician. During Merlin Missions, Jack and Annie make two friends named Teddy and Kathleen. They soon completed four missions that showed they could properly handle magic. On those missions, they were given a book of ten magic rhymes to use on four missions. Each rhyme can only be used once. Since they succeeded in those four missions, they were given the Wand of Dianthus. A magic wand that could create magic. Soon Merlin was not well, and not cheerful at all. Jack and Annie found four secrets of happiness for him, and now he is happy again. However the biggest thing that cheered him up was a little penguin Jack and Annie had gotten from their last mission to find the last secret of happiness for Merlin. That mission had taken place in Antarctica. In the last two missions they helped Louis Armstrong and Mozart. In this mission they are going to help a girl named Augusta.
In this book Jack is doing homework when suddenly on his notebook appeared T K. That stands for Teddy and Kathleen! The magic treehouse is back! Jack called Annie and they went to the magic treehouse. It is back! They climbed into the treehouse, and greeted their friends Teddy and Kathleen. Then Teddy and Kathleen said that on this mission they will inspire a girl named Augusta to share her creativity with the world. Teddy handed the magic trumpet from their last mission, and gave it to Kathleen. Kathleen threw it up in the air, and it turned to a magic whistle. When danger arrives somebody needs to blow on the whistle, and the other person sings. Whatever that person sings will come true. Teddy and Kathleen also said that Augusta lives in The Big House. Finding her would be easy. Just ask directions to The Big House where Augusta lives. By the way, Jack has been taking notes about what they were going to do in the mission. Since they did not have a research book, Teddy and Kathleen said to just point at Jack’s notes. Since Jack and Annie wanted to help Augusta, Teddy and Kathleen left and Jack and Annie pointed at Jack’s notes and made a wish to go there. Then they magically appeared at the place their mission was taking place! They climbed out the treehouse, and did as they were told. They asked someone the directions to The Big House. Soon, they arrived there. Soon, they also figured out a way to get in The Big House. Augusta was not home, but they were lucky that she soon arrived. By the way, a wagon splashed Jack and Annie with dirty water, and now they were really dirty. Augusta and everyone thought they were poor. Everyone treated them badly except Augusta, since she treated poor people nicely. Augusta took them to the parlour to eat. They already figured out that they had to be polite to Augusta, and call her Ms. Augusta. Soon, Augusta’s mother arrived and said Jack and Annie couldn’t stay in the Big House because they were poor and dirty. Augusta was sad, but she took them out of the Big House. Augusta was very snobby. Soon Jack thought this was too much. So he had to do something. He didn’t want to call Augusta Ms. Augusta anymore. He accidentally blurted out that Augusta was just pretending that she helped poor people, and that she was very snobby. He made Augusta very mad. Soon he realized that the mission was to help Augusta, not say she is snobby and annoy her. How will Jack and Annie inspire her when they are tired of her snobbiness? How will Jack and Annie cooperate with her? How will they complete their mission?