According to the text in Chapter 18, what happens to the eight-year-old female cancer patient after all the other children (with the exception of Penny) have been released from the hospital and gone home?

According to the text in Chapter 18, after the other children (with the exception of Penny) have been released from the hospital and gone home, the eight-year-old female cancer patient is moved into Penny's room so that the two of them can have company.