“So you just decided to try out an unknown, handwritten incantation and see what would happen?”
“Why does it matter if it’s handwritten?” said Harry, preferring not to answer the rest of the question.
“Because it’s probably not Ministry of Magic approved,” said Hermione. “And also,” she added, as Harry and Ron rolled their eyes, “because I’m starting to think this Prince character was a bit dodgy.”
Both Harry and Ron shouted her down at once.
“It was a laugh!” said Ron, upending a ketchup bottle over his sausages. “Just a laugh, Hermione, that’s all!”
“Dangling people upside down by the ankle?” said Hermione. “Who puts their time and energy into making up spells like that?”
“Fred and George,” said Ron, shrugging, “it’s their kind of thing. And, er—”
“My dad,” said Harry. He had only just remembered.
“What?” said Ron and Hermione together.
“My dad used this spell,” said Harry. “I—Lupin told me.”
This last part was not true; in fact, Harry had seen his father use the spell on Snape, but he had never told Ron and Hermione about that particular excursion into the Pensieve. Now, however, a wonderful possibility occurred to him. Could the Half-Blood Prince possibly be—?
“Maybe your dad did use it, Harry,” said Hermione, “but he’s not the only one. We’ve seen a whole bunch of people use it, in case you’ve forgotten. Dangling people in the air. Making them float along, asleep, helpless.”
Harry stared at her. With a sinking feeling, he too remembered the behavior of the Death Eaters at the Quidditch World Cup. Ron came to his aid.
“That was different,” he said robustly. “They were abusing it. Harry and his dad were just having a laugh. You don’t like the Prince, Hermione,” he added, pointing a sausage at her sternly, “because he’s better than you at Potions—”
“It’s got nothing to do with that!” said Hermione, her cheeks reddening. “I just think it’s very irresponsible to start performing spells when you don’t even know what they’re for, and stop talking about ‘the Prince’ as if it’s his title, I bet it’s just a stupid nickname, and it doesn’t seem as though he was a very nice person to me!”
“I don’t see where you get that from,” said Harry heatedly. “If he’d been a budding Death Eater he wouldn’t have been boasting about being ‘half-blood,’ would he?”