J. Rowling - Harry Potter and the Prisoner of Azkaban

They crept through the trees until they saw the nervous hippogriff, tethered to the fence around Hagrid’s pumpkin patch.

“Now?” Harry whispered.

“No!” said Hermione. “If we steal him now, those Committee people will think Hagrid set him free! We’ve got to wait until they’ve seen he’s tied outside!”

“That’s going to give us about sixty seconds,” said Harry. This was starting to seem impossible.

At that moment, there was a crash of breaking china from inside Hagrid’s cabin.

“That’s Hagrid breaking the milk jug,” Hermione whispered. “I’m going to find Scabbers in a moment—”

Sure enough, a few minutes later, they heard Hermione’s shriek of surprise.

“Hermione,” said Harry suddenly, “what if we—we just run in there and grab Pettigrew—”

“No!” said Hermione in a terrified whisper. “Don’t you understand? We’re breaking one of the most important wizarding laws! Nobody’s supposed to change time, nobody! You heard Dumbledore, if we’re seen—”

“We’d only be seen by ourselves and Hagrid!”

“Harry, what do you think you’d do if you saw yourself bursting into Hagrid’s house?” said Hermione.

“I’d—I’d think I’d gone mad,” said Harry, “or I’d think there was some Dark Magic going on—”

“Exactly! You wouldn’t understand, you might even attack yourself! Don’t you see? Professor McGonagall told me what awful things have happened when wizards have meddled with time… Loads of them ended up killing their past or future selves by mistake!”

“Okay!” said Harry. “It was just an idea, I just thought—”

But Hermione nudged him and pointed toward the castle. Harry moved his head a few inches to get a clear view of the distant front doors. Dumbledore, Fudge, the old Committee member, and Macnair the executioner were coming down the steps.

“We’re about to come out!” Hermione breathed.

And sure enough, moments later, Hagrid’s back door opened, and Harry saw himself, Ron, and Hermione walking out of it with Hagrid. It was, without a doubt, the strangest sensation of his life, standing behind the tree, and watching himself in the pumpkin patch.

“It’s okay, Beaky, it’s okay…” Hagrid said to Buckbeak. Then he turned to Harry, Ron, and Hermione. “Go on. Get goin’.”

“Hagrid, we can’t—”

“We’ll tell them what really happened”

“They can’t kill him—”

“Go! It’s bad enough without you lot in trouble an’ all!”

Harry watched the Hermione in the pumpkin patch throw the Invisibility Cloak over him and Ron.

“Go quick. Don’ listen…”

There was a knock on Hagrid’s front door. The execution party had arrived. Hagrid turned, around and headed back into his cabin, leaving the back door ajar. Harry watched the grass flatten in patches all around the cabin and heard three pairs of feet retreating. He, Ron, and Hermione had gone… but the Harry and Hermione hidden in the trees could now hear what was happening inside the cabin through the back door.

“Where is the beast?” came the cold voice of Macnair.

“Out—outside,” Hagrid croaked.

Harry pulled his head out of sight as Macnair’s face appeared at Hagrid’s window, staring out at Buckbeak. Then they heard Fudge.

“We—er—have to read you the official notice of execution, Hagrid. I’ll make it quick. And then you and Macnair need to sign it. Macnair, You’re supposed to listen too, that’s procedure—”

Macnair’s face vanished from the window. It was now or never.

“Wait here,” Harry whispered to Hermione. “I’ll do it.”

As Fudge’s voice started again, Harry darted out from behind his tree, vaulted the fence into the pumpkin patch, and approached Buckbeak.

“It is the decision of the Committee for the Disposal of Dangerous Creatures that the hippogriff Buckbeak, hereafter called the condemned, shall he executed on the sixth of June at sundown—”

Careful not to blink, Harry stared up into Buckbeak’s fierce orange eyes once more and bowed. Buckbeak sank to his scaly knees and then stood up again. Harry began to fumble with the knot of rope tying Buckbeak to the fence.

“…sentenced to execution by beheading, to be carried out by the Committee’s appointed executioner, Walden Macnai…”

“Come on, Buckbeak,” Harry murmured, “come on, we’re going to help you. Quietly… quietly…”

“…as witnessed below. Hagrid, you sign here…”

Harry threw all his weight onto the rope, but Buckbeak had dug in his front feet.

“Well, let’s get this over with,” said the reedy voice of the Committee member from inside Hagrid’s cabin. “Hagrid, perhaps it will be better if you stay inside—”

“No, I—I wan’ ter be with him… I don’ wan’ him ter be alone—”

Footsteps echoed from within the cabin.

“Buckbeak, move!” Harry hissed.

Harry tugged harder on the rope around Buckbeak’s neck. The hippogriff began to walk, rustling its wings irritably. They were still ten feet away from the forest, in plain view of Hagrid’s back door. “One moment, please, Macnair,” came Dumbledore’s voice. “You need to sign too.” The footsteps stopped. Harry heaved on the rope. Buckbeak snapped his beak and walked a little faster.

Hermione’s white face was sticking out from behind a tree.

“Harry, hurry!” she mouthed.

Harry could still hear Dumbledore’s voice talking from within the cabin. He gave the rope another wrench. Buckbeak broke into a grudging trot. They had reached the trees…

“Quick! Quick!” Hermione moaned, darting out from behind her tree, seizing the rope too and adding her weight to make Buckbeak move faster. Harry looked over his shoulder; they were now blocked from sight; they couldn’t see Hagrid’s garden at all.

“Stop!” he whispered to Hermione. “They might hear us—”

Hagrid’s back door had opened with a bang. Harry, Hermione, and Buckbeak stood quite still; even the hippogriff seemed to be listening intently. Silence… then—

“Where is it?” said the reedy voice of the Committee member. “Where is the beast?”

“It was tied here!” said the executioner furiously. “I saw it! just here!”

“How extraordinary,” said Dumbledore. There was a note of amusement in his voice.

“Beaky!” said Hagrid huskily.

There was a swishing noise, and the thud of an axe. The executioner seemed to have swung it into the fence in anger. And then came the howling, and this time they could hear Hagrid’s words through his sobs.

“Gone! Gone! Bless his little beak, he’s gone! Musta pulled himself free! Beaky, yeh clever boy!”

Buckbeak started to strain against the rope, trying to get back to Hagrid. Harry and Hermione tightened their grip and dug their heels into the forest floor to stop him.

“Someone untied him!” the executioner was snarling. “We should search the grounds, the forest.”

“Macnair, if Buckbeak has indeed been stolen, do you really think the thief will have led him away on foot?” said Dumbledore, still sounding amused. “Search the skies, if you will… Hagrid, I could do with a cup of tea. Or a large brandy.”

“O’—o’ course, Professor,” said Hagrid, who sounded weak with happiness. “Come in, come in…”

Harry and Hermione listened closely. They heard footsteps, the soft cursing of the executioner, the snap of the door, and then silence once more.

“Now what?” whispered Harry, looking around.

“We’ll have to hide in here,” said Hermione, who looked very shaken. “We need to wait until they’ve gone back to the castle. Then we wait until it’s safe to fly Buckbeak up to Sirius’s window. He won’t be there for another couple of hours… Oh, this is going to be difficult…”