Ye Feng and the others, who were happily doing morning exercises and stretching their bodies, were suddenly startled by Headmaster Dumbledore’s voice. The Weasley twins let out a startled squawk and bolted, though they stopped dead in their tracks the very next instant.
As for Ye Feng, his reaction wasn't nearly as dramatic as that of the Weasley twins.
Although he had also been startled, it was simply because he had been so deeply engrossed in teaching the Weasley twins their morning exercises that the sudden voice had caught him off guard. Therefore, when he realized it was Headmaster Dumbledore calling out to them, he didn't feel any fear at all. Instead, he flashed a bright, cheerful smile at Headmaster Dumbledore.
Chapter 21