How did William Beech feel being back in London again?

When William returns to London, he finds his mother thin and frail. She barely recognizes her son and is horrified to learn of how well he is doing. She is convinced he has begged for his new clothes and belongings and has been sinful. He attempts to convince her he has been surrounded by wonderful, kind people but she will hear nothing of the sort. They return to her damp, cold home to find a baby with its mouth covered with tape to prevent it from crying. William is horrified at the scene and when he attempts to question his mother’s actions and words, she beats him severely. He wakes up in a closet below the stairs, beaten and missing the warm clothes Mr. Tom had provided for him.