Omg ! This book is so good ! I just read chapter one and it was great. There is two characters so far, Annie and Jack. They are brother and sister. They like to discover new things. One day Annie was walking threw the woods and saw a light and appeared a tree house and got so excited and told jack about it. They went to go check it out and knew that is was a Magic tree house. The owner is Morgan le Fay. She gave Jack and Annie magic,Morgan gives them missions for them to do, so she can see how they can use their magic wisely. The brother and sister went to New York to find the Unicorn... Cant wait for Chapter too !