Terry had been grading papers in his office in their rooms, keeping track of Ben via the House Elves and a tracking charm on Ben's clothes that would let him know where in the castle Ben was. He'd smiled when he'd learned that Faustus Snape was tagging along, glad the boys were getting along and exploring the castle together.
Which was why he wasn't surprised when they both turned up eventually. He grinned, and set aside the papers he was working on. They could wait until later, and maybe they'd help him get to sleep.
He entered the living room and smiled when he saw that Ben had spread out a blanket and arranged a large amount of food out. "Well, it looks like the House Elves took care of you both," he said. "Hello Faustus, how are you?" He took a seat and reached for an apple. He wasn't particularly hungry but he had to eat. "Mind if I join you?" He cocked his head. "And does your father know where you are?"