"It's coming from your trunk, Harry," said Ron, standing up and reaching into the luggage rack. A moment later he had pulled the Pocket Sneakoscope out from between Harry's robes. It was spinning very fast in the palm of Ron's hand and glowing brilliantly.

Amelia sighed heavily and glanced over at Professor Lupin's sleeping figure. She had learned not to trust her Defense Against The Dark Arts teachers. The first one had He Who Must Not Be Named under his turban, and the second one was a nutter. 

"Is that a Sneakoscope?" said Hermione interestedly, standing up for a better look.

"Yeah... mind you, it's a very cheap one," Ron said. "It went haywire just as I was tying it to Errol's leg to send it to Harry."

"Were you doing anything untrustworthy at the time?" said Hermione shrewdly.

"No! Well... I wasn't supposed to be using Errol. You know he's not really up to long journeys... but how else was I supposed to get Harry's present to him?"

"Stick it back in the trunk," Harry advised as the Sneakoscope whistled piercingly, "or it'll wake him up."

He nodded toward Professor Lupin. Ron stuffed the Sneakoscope into a particularly horrible pair of Uncle Vernon's old socks, which deadened the sound, then closed the lid of the trunk on it.

"We could get it checked in Hogsmeade," said Ron, sitting back down. "They sell that sort of thing in Dervish and Banges, magical instruments and stuff. Fred and George told me."

"Do you know much about Hogsmeade?" asked Hermione keenly. "I've read it's the only entirely non-Muggle settlement in Britain --"

"Yeah, I think it is," said Ron in an offhand sort of way.

"But that's not Why I want to go. I just want to get inside Honey Dukes."

"What's that?" said Hermione.