Ash and Flames - Peter Pettigrew

Peter Pettigrew has been imprisoned in Azkaban to await if the ministry will enforce the newly reintroduced capital punishment law on him, after failing to betray James and Lily Potter. Instead being found out and exiled. Inside he meets a girl through the wall who convinces him that he shouldn't end it all himself in his cell. Maybe she's karma, or maybe she isn't there at all.