Suddenly, a faint whistle sounded, and they hurriedly looked around.
Ron pointed at Harry's pocket and said:
"It's coming from your pocket."
Harry quickly took the Sneakoscope out of his pocket. It was spinning rapidly and giving off a dazzling light.
Hermione glanced at it, drew her wand, and cast a Silencing Charm straight at the Sneakoscope.
Then she said in surprise:
"Didn't the professor say this thing wasn't very accurate? Why are you still carrying it around?"
Ron said discontentedly from beside them:
"Yes, yes, I know it's cheap. When I tied it to Errol's leg to send it to Harry, it suddenly went wrong. Thank goodness you actually know how to make it stop."
Hermione hurriedly apologized:
"Sorry, Ron. I almost forgot it was your gift to Harry."
Ron waved a hand indifferently.
Harry patted Ron's shoulder and said:
"I think it's pretty useful. Once, when Wangcai tried to look through my trunk, it gave an accurate warning. Then Wangcai took it away because it was shiny, and in the end I had to trade him a Galleon to get it back."
Ron asked curiously:
"Who's Wangcai? What a strange name."
Hermione said from beside them:
"He's a Niffler Professor Holmes keeps. The first time we met, he actually took one of my buttons off without me even noticing. The professor also keeps a big black dog at home, and his name's pretty strange too..."
Ron quickly interrupted Hermione, his face full of excitement:
"Really? I mean, is the bit about the Niffler true? I've always wanted a Niffler too, but I hear they're really hard to buy. The goblins have practically monopolized all the ones on the market..."
After that, the three of them turned to discussing Nifflers.
None of them noticed that Lupin, who had been