Peter, also known as Wormtail, was a coward. He feared for his life, he betrayed his best friends years ago which caused one of them die with his family. Peter feeled remorse but he felt the need to survive even more. The last 12 years he spent in his rat form and lived by the Weasleys. They didn't know about his true identity. Everyone thought he were dead. Ron took him to Hogwarts, holding Peter as a rat in his small hands. Bit Peter used every opportunity to escape from the treats loving boy. Instead he was roaming through the corridors now. His tiny paws tippling over the floor.