Y/N is an hidden Daugher of headmaster Snape and she is very cunning and evil but under it she very clever to hide who she is. No one knew who she was and she very in her life never to get caught and setting people up like blow up potion or hexes people. Tom riddle never realized its was me because he desperate to find who doing this to everyone. His inner circle of friends or followers Mattheo riddle, Evan rosier, Draco Malfoy and Barty crouch jr. My friends pansy, Astoria and Daphne but even my friends doesn’t know it either. Next is Evan Rosier to hex him, then it’s Draco I hex next , then barty crouch jr , then Mattheo and lastly tom but I will use powerful hex on him like spill his cauldron and burn his robe but it’s won’t trace it back to me. Plus I’m a menace. I need an alibi where am I going so no one won’t suspect me. I could transform to a cat and back to human