Nastasha and Leo Williams are walking home when Nastasha spots a note in the bushes. She steps aside to look at it, but her brother, Leo, calls for her, so she quickly stuffs it into her bag and catches up with him. When she gets home, she opens it,. It tells her that she could either accept the challenge, or burn the letter and let that be the end of that. She decides to keep it, and 4 days later, she receives another letter. The letter is a clue, and she doesn't know what it means. She tells Leo about it, who helps her decode it. They end up on a quest and go to the house of someone . They hear weird nosies and find a book which leads them to a graveyard, where they find the truth about their parents death. They meet Master Atticus, who sent them on this journey. He tells them about their parents, and they are teleported back to reality.