"It's the best broom there is, Hermione," he said. 

"So it must've been really expensive...." 

"Probably cost more than all the Slytherins' brooms put together," said Ron happily. 

"Well... who'd send Harry something as expensive as that, and not even tell him they'd sent it?" said Hermione. 

"Who cares?" said Ron impatiently. "Listen, Harry, can I have a go on it? Can I?" 

"I don't think anyone should ride that broom just yet!" said Hermione shrilly. 

Harry and Ron looked at her. 

"What d'you think Harry's going to do with it -- sweep the floor?" said Ron. 

But before Hermione could answer, Crookshanks sprang from Seamus's bed, right at Ron's chest.

 "GET -- HIM -- OUT -- OF -- HERE!" Ron bellowed as Crookshanks's claws ripped his pajamas and Scabbers attempted a wild escape over his shoulder. Ron seized Scabbers by the tail and aimed a misjudged kick at Crookshanks that hit the trunk at the end of Harry's bed, knocking it over and causing Ron to hop up and down, howling with pain. 

Crookshanks's fur suddenly stood on end. A shrill, tint,, whistling was filling the room. The Pocket Sneakoscope had become dislodged from Uncle Vernon's old socks and was whirling and gleaming on the floor. 

"I forgot about that!" Harry said, bending down and picking up the Sneakoscope. I never wear those socks if I can help it.... 

The Sneakoscope whirled and whistled in his palm. Crookshanks was hissing and spitting at it.