Petunia didn't go to school the next day, so neither did Mat. He pretended he was leaving but the second Miss Dodder, the orphanage supervisor, left to go to her part-time job at the library, Mat snuck back in and went to his room to stay with his sister.
There was a loud knock on the front door, waking up Petunia. "Mat?" she asked. "Why are you here?"
"Shhh," he whispered. The knocking stopped. "Go back to bed," he told her. She nodded and lay down.