The Great Hall at Hogwarts is very large; otherwise, it could not accommodate all the students and faculty for meals. However, despite its size, there are very few places where anything can actually be hidden, because a large number of people move through here every day, and almost everyone sits in the exact same spot for their meals.
Because of this, the Hogwarts students, who were extremely familiar with the environment of the Great Hall, would keenly notice even the slightest anomaly. Hiding something here was exceptionally difficult.
Filch and the Death Eater transformed into a bird were both well aware of this, so their first thought was Ye Feng's usual seating area.
Chapter 186