Merkle is a thin, pencil-shaped fairy and loved reading, shown later in the story. She agreed to help Trix along with Noodle to steal the book from the Fairy Godmother's chambers, giving it to Conner and his friends as a gift of paying back the favor. Merkle shown to be wary and nervous, and even though she supports that Alex is sane and innocent, she is still hesitant about the idea of stealing.