“I spoke a different language? But—I didn’t realize—how can I speak a language without knowing I can speak it?”
Ron shook his head. Both he and Hermione were looking as though someone had died. Harry couldn’t see what was so terrible.
“D’you want to tell me what’s wrong with stopping a massive snake biting off Justin’s head?” he said. “What does it matter how I did it as long as Justin doesn’t have to join the Headless Hunt?”
“It matters,” said Hermione, speaking at last in a hushed voice, “because being able to talk to snakes was what Salazar Slytherin was famous for. That’s why the symbol of Slytherin House is a serpent.”
Harry’s mouth fell open.
“Exactly,” said Ron. “And now the whole school’s going to think you’re his great great great great grandson or something—”
“But I’m not,” said Harry, with a panic he couldn’t quite explain.
“You’ll find that hard to prove,” said Hermione. “He lived about a thousand years ago; for all we know, you could be.”
Harry lay awake for hours that night. Through a gap in the curtains around his four-poster he watched snow starting to drift past the tower window and wondered…
Could he be a descendant of Salazar Slytherin? He didn’t know anything about his father’s family, after all. The Dursleys had always forbidden questions about his wizarding relatives.
Quietly, Harry tried to say something in Parseltongue. The words wouldn’t come. It seemed he had to be face to face with a snake to do it.
But I’m in Gryffindor, Harry thought. The Sorting Hat wouldn’t have put me in here if I had Slytherin blood…
Ah, said a nasty little voice in his brain, but the Sorting Hat wanted to put you in Slytherin, don’t you remember?
Harry turned over. He’d see Justin the next day in Herbology and he’d explain that he’d been calling the snake off, not egging it on, which (he thought angrily, pummeling his pillow) any fool should have realized.
By next morning, however, the snow that had begun in the night had turned into a blizzard so thick that the last Herbology lesson of the term was canceled: Professor Sprout wanted to fit socks and scarves on the Mandrakes, a tricky operation she would entrust to no one else, now that it was so important for the Mandrakes to grow quickly and revive Mrs. Norris and Colin Creevey.
Harry fretted about this next to the fire in the Gryffindor common room, while Ron and Hermione used their time off to play a game of wizard chess.
“For heaven’s sake, Harry,” said Hermione, exasperated, as one of Ron’s bishops wrestled her knight off his horse and dragged him off the board. “Go and find Justin if it’s so important to you.”