When Messer was in front of the HOM classroom, he noticed there's a sign. Class today will be held on the second floor, in the girls lavatory. Okay. Wait! WHAT???!!!

Girls lavatory? o______O

He re-read the sign again hoping that he misread but the sign didn't change a bit. Why they have the HOM lesson in the girls lavatory? Was this mean that Professor Scabior was the Heir of Slytherin? And isn't the girls lavatory was haunted? Nevertheless, Messer walked toward the girls lavatory. He was hesitated to enter the girls lavatory because its GIRLS lavatory and he's a boy! But he saw an older Ravenclaw boy entered the lavatory so he tailed behind him.

"Hello, Professor Scabior. How are you today?" he greeted the Professor before he went to sit down on the floor