After sitting with Hermione and Ron, going through everything multiple times, he decided to give them time alone. They needed to talk about personal stuff without his input and he might as well see if Draco was still up. Maybe, or maybe not. It wasn't like there was much doing here. He should be the one sleeping after getting up in the middle of the night, but he couldn't, not right now, not knowing that Hermione was back.
He made his way to Draco's room when he heard the screaming. "Hello," he said looking up at the grand staircase. "There's no need to scream. No one can hear you with the stone walls. It's much simpler to ask a house-elf or a portrait," he said amused.