But Hermione was fumbling with the neck of her robes, pulling from beneath them a very long, very fine gold chain.
“Harry, come here,” she said urgently. “Quick!”
Harry moved toward her, completely bewildered. She was holding the chain out. He saw a tiny, sparkling hourglass hanging from it.
“Here—” She had thrown the chain around his neck too.
“Ready?” she said breathlessly.
“What are we doing?” Harry said, completely lost.
Hermione turned the hourglass over three times.
The dark ward dissolved. Harry had the sensation that he was flying very fast, backward. A blur of colors and shapes rushed past him, his ears were pounding, he tried to yell but couldn’t hear his own voice—
And then he felt solid ground beneath his feet, and everything came into focus again—
He was standing next to Hermione in the deserted entrance hall and a stream of golden sunlight was falling across the paved floor from the open front doors. He looked wildly around at Hermione, the chain of the hourglass cutting into his neck.
“Hermione, what—?”
“In here!” Hermione seized Harry’s arm and dragged him across the hall to the door of a broom closet; she opened it, pushed him inside among the buckets and mops, then slammed the door behind them.
“What—how—Hermione, what happened?”
“We’ve gone back in time,” Hermione whispered, lifting the chain off Harry’s neck in the darkness. “Three hours back…”
Harry found his own leg and gave it a very hard pinch. It hurt a lot, which seemed to rule out the possibility that he was having a very bizarre dream.
“But—”
“Shh! Listen! Someone’s coming! I think—I think it might be us!” Hermione had her ear pressed against the cupboard door.
“Footsteps across the hall… yes, I think it’s us going down to Hagrid’s!”
“Are you telling me,” Harry whispered, “that we’re here in this cupboard and we’re out there too?”
“Yes,” said Hermione, her ear still glued to the cupboard door. “I’m sure it’s us. It doesn’t sound like more than three people… and we’re walking slowly because we’re under the Invisibility Cloak—”