Thornton was upstairs. He risen early and had been... perhaps a bit fretfully pacing on the first floor waiting for Paige's arrival when his mother had requested that he go check that everything was set upstairs for his guest's arrival.
As if he hadn't check on those things a half dozen times already.
But when he'd tried to protest that he had already done so, his mother had fixed him with one of her stern gazes, truthfully rare, and had simply pointed toward the stairs. And so Thornton was dutifully making sure that bedding, spare toiletries, towels, laundry bags for wet swimwear, and more were all set out as they should be.
All this meant that the Ravenclaw never heard the knock. Thornton had no idea that his friend had already arrived, nor that she was currently being greeted by Adelaide. While it was certainly better than being pounced upon by Nowell first thing, if he'd known it was happening, Thornton would have worried at Paige's comfort.
Making his way down the stairs, still completely oblivious, he simply called out
"Everything is as it should be, Mother."