Carl thought that someone has made her write the letter. She could be dead. Carl didn't know what to do. Mary and Carl told the police about the letter.
Carl goes back to London. He tries to talk with Melissa, but Melissa was very angry with Carl.
In the kitchen of his flat he found two dirty cups in the ink. Carl was sure he had not left them there. On the wardrobe he found a yellow dress. Carl was sure she had come back to the flat during the weekend