What are the characters from the book the vanishing coin?

In "The Vanishing Coin" by Kate Egan, the main characters are a young boy named Jack and his friend, a girl named Annie. Jack is intrigued by magic and seeks to impress his classmates, while Annie supports him in his quest. The story also features a mysterious magician, who plays a crucial role in guiding Jack and Annie through their adventures. Together, they navigate challenges and learn valuable lessons about friendship and self-confidence.