Entering the Potion office, Snape threw the iron cage onto the desk and sat down immediately to grade students' essays.
Seeing that the man didn't even spare her a single glance, the little sparrow began frantically pecking at the iron cage. Iblis knew that Snape wanted to exhaust her magic. "How can you be so vicious? The head of Slytherin is murdering a student! Dumbledore, if you don't come and save me..."
"Since Miss Grimm is so fond of transforming, she might as well stay in the iron cage forever." Snape kept his head down, grading essays, and completely ignored the little sparrow's screeching.
Chapter 53