Eun Ha was terrified to see Chang Mi's body shivering and not being able to wake him up from the nightmare the student had been stuck in for hours.
Shin was nowhere to be seen and Mr. Ahn confessed that his master had left for something important. Although the butler did not say more than that, Eun Ha could guess what it meant. Shin had been preparing for weeks and hunting down several locations trying to find the Devourer, following Chang Mi's lead. He had prepared himself and used Eun Ha's help to instill magical objects.
And if he was out of reach, it could only mean that he had found the Devourer.
And Chang Mi found him, apparently.
The Devourer had taken over his son's body with some sort of brutal spell, but the purpose was unclear.