After Professor Snape left, Rhea Walker took a seat in the corner of the front row, and Professor McGonagall turned back into a cat, waiting for the students to arrive.
When Ron Weasley woke up in the morning, he did not notice that Scabbers was missing. Peter Pettigrew was usually not very active and always liked to find a comfortable spot to lie down without moving, so Ron had no idea at all that his pet "Scabbers" had vanished.
Harry and Ron walked together to the Transfiguration classroom. After the two of them arrived late, Ron even lucked out and said, "Good thing the teacher isn't here yet."
Chapter 38