Severus watched calmly as Terry hugged Faustus then one eyebrow went up as Ben launched himself at first Faustus and them himself. He managed to stop himself from scowling and simply nodded to the boy. He had no idea why Ben was so fascinated with him or what had prompted the 'Bat Man' tag but now was not the time to deal with it.
He was curious about what Terry had said to Faustus but didn't ask. That was between Terry and Faustus and he had spent far too many years fending off curious eavesdroppers and annoying questioners when he was a teenager to butt into what was obviously a private conversation. Besides he knew that if it was something he needed to know about Terry would tell him.
He managed a wryly amused look in reply to Terry's apologetic grin then he placed a hand on Faustus' shoulder.
"Good night, Professor Boot. Good night, Ben. It is time for us to go home," he said politely then he guided Faustus towards the door. He opened the door and ushered his son out of the room, making a mental note to ask Titchy to bring a substantial dinner to their rooms. It didn't look like Faustus had been eating when he'd arrived and he would not have his son missing meals.