Laila stiffened as the demon aura got stronger. He had just entered the room. She saw him give the teacher an excuse and then followed him with her eyes to his seat. She didn't turn around. Was he here for Lilith or herself? Both were viable options. She was a very powerful and rare being. The only hybrid angel/demon to exist so far. Then there was Lilith. The daughter of Lucifer. She was to turn 18 this year. Had he sent someone to watch her? 

She could feel his eyes almost burning into the back of her skull. She turned around in her seat and looked at him. "Can I help you?" She said kindly. She was soft and gentle. No sign of evil, but it was there. Deep deep down. Hidden away the best she could. 

Lilith looked up from her work and round at Laila. Saw who she was talking to, shrugged and just got back on with her work. She couldnt sense anything. As her powers hadnt come to fruit yet she would not be able to sense these things.