Dumbledore was now rummaging in a cupboard behind Harry and Ron. He emerged from it carrying a blackened old kettle, which he placed carefully on his desk. He raised his wand and murmured, 'Portus! ' For a moment the kettle trembled, glowing with an odd blue light; then it quivered to rest, as solidly black as ever.

Dumbledore marched over to another portrait, this time of a clever-looking wizard with a pointed beard, who had been painted wearing the Slytherin colours of green and silver and was apparently sleeping so deeply that he could not hear Dumbledore's voice when he attempted to rouse him.

'Phineas. Phineas. '

The subjects of the portraits lining the room were no longer pretending to be asleep; they were shifting around in their frames, the better to watch what was happening. When the clever-looking wizard continued to feign sleep, some of them shouted his name, too.

'Phineas! Phineas! PHINEAS!'

He could not pretend any longer; he gave a theatrical jerk and opened his eyes wide.

'Did someone call?'

'I need you to visit your other portrait again, Phineas,' said Dumbledore. 'I've got another message.'

'Visit my other portrait?' said Phineas in a reedy voice, giving a long, fake yawn (his eyes travelling around the room and focusing on Harry). 'Oh, no, Dumbledore, I am too tired tonight.'

Something about Phineas's voice was familiar to Harry, where had he heard it before? But before he could think, the portraits on the surrounding walls broke into a storm of protest.

'Insubordination, sir!' roared a corpulent, red-nosed wizard, brandishing his fists. 'Dereliction of duty!'

'We are honour-bound to give service to the present Headmaster of Hogwarts!' cried a frail-looking old wizard whom Harry recognised as Dumbledore's predecessor, Armando Dippet. 'Sharne on you, Phineas!'

'Shall I persuade him, Dumbledore?' called a gimlet-eyed witch, raising an unusually thick wand that looked not unlike a birch rod.

'Oh, very well, ' said the wizard called Phineas, eyeing the wand with mild apprehension, 'though he may well have destroyed my picture by now, he's done away with most of the family — '

'Sirius knows not to destroy your portrait,' said Dumbledore, and Harry realised immediately where he had heard Phineas's voice before: issuing from the apparently empty frame in his bedroom in Grimmauld Place. 'You are to give him the message that Arthur Weasley has been gravely injured and that his wife, children and Harry Potter will be arriving at his house shortly. Do you understand?'

'Arthur Weasley, injured, wife and children and Harry Potter coming to stay,' repeated Phineas in a bored voice. 'Yes, yes . . . very well . . .'

He sloped away into the frame of the portrait and disappeared from view at the very moment the study door opened again. Fred, George and Ginny were ushered inside by Professor McGonagall, all three of them looking dishevelled and shocked, still in their night things.

'Harry — what's going on?' asked Ginny, who looked frightened. 'Professor McGonagall says you saw Dad get hurt — '

'Your father has been injured in the course of his work for the Order of the Phoenix,' said Dumbledore, before Harry could speak. 'He has been taken to St Mungo's Hospital for Magical Maladies and Injuries. I am sending you back to Sirius's house, which is much more convenient for the hospital than The Burrow. You will meet your mother there.'

'How're we going?' asked Fred, looking shaken. 'Floo powder?'

'No,' said Dumbledore, 'Floo powder is not safe at the moment, the Network is being watched. You will be taking a Portkey.' He indicated the old kettle lying innocently on his desk. 'We are just waiting for Phineas Nigellus to report back . . . I want to be sure that the coast is clear before sending you — '

There was a flash of flame in the very middle of: the office, leaving behind a single golden feather that floated gently to the floor.

'It is Fawkes's warning,' said Dumbledore, catching the feather as it fell. 'Professor Umbridge must know you're out of your beds . . . Minerva, go and head her off — tell her any story — '

Professor McGonagall was gone in a swish of tartan.

'He says he'll be delighted,' said a bored voice behind Dumbledore; the wizard called Phineas had reappeared in front of his Slytherin banner. 'My great-great-grandson has always had an odd taste in house-guests.'

'Come here, then,' Dumbledore said to Harry and the Weasleys. 'And quickly, before anyone else joins us.'

Harry and the others gathered around Dumbledore's desk.

'You have all used a Portkey before?' asked Dumbledore, and they nodded, each reaching out to touch some part of the blackened kettle. 'Good. On the count of three, then . . . one . . . two . . .'

It happened in a fraction of a second: in the infinitesimal pause before Dumbledore said 'three', Harry looked up at him — they were very close together — and Dumbledore's clear blue gaze moved from the Portkey to Harry's face.

At once, Harry's scar burned white-hot, as though the old wound had burst open again — and unbidden, unwanted, but terrifyingly strong, there rose within Harry a hatred so powerful he felt, for that instant, he would like nothing better than to strike — to bite — to sink his fangs into the man before him —

'. . . three. '

Harry felt a powerful jerk behind his navel, the ground vanished from beneath his feet, his hand was glued to the kettle; he was banging into the others as they all sped forwards in a swirl of colours and a rush of wind, the kettle pulling them onwards . . . until his feet hit the ground so hard his knees buckled, the kettle clattered to the ground, and somewhere close at hand a voice said:

'Back again, the blood-traitor brats. Is it true their father's dying?'

'OUT!' roared a second voice.

Harry scrambled to his feet and looked around; they had arrived in the gloomy basement kitchen of number twelve, Grimmauld Place. The only sources of light were the fire and one guttering candle, which illuminated the remains of a solitary supper. Kreacher was disappearing through the door to the hall, looking back at them malevolently as he hitched up his loincloth; Sirius was hurrying towards them all, looking anxious. He was unshaven and still in his day clothes; there was also a slightly Mundungus-like whiff of stale drink about him.

'What's going on?' he said, stretching out a hand to help Ginny up. 'Thineas Nigellus said Arthur's been badly injured — '

'Ask Harry,' said Fred.

'Yeah, I want to hear this for myself,' said George.

The twins and Ginny were staring at him. Kreacher's footsteps had stopped on the stairs outside.

'It was — ' Harry began; this was even worse than telling McGonagall and Dumbledore. 'I had a — a kind of — vision . . .'

And he told them all that he had seen, though he altered the story so that it sounded as though he had watched from the sidelines as the snake attacked, rather than from behind the snake's own eyes. Ron, who was still very white, gave him a fleeting look, but did not speak. When Harry had finished, Fred, George and Ginny continued to stare at him for a moment. Harry did not know whether he was imagining it or not, but he fancied there was something accusatory in their looks. Well, if they were going to blame him just for seeing the attack, he was glad he had not told them that he had been inside the snake at the time.

'Is Mum here?' said Fred, turning to Sirius.

'She probably doesn't even know what's happened yet,' said Sirius. 'The important thing was to get you away before Umbridge could interfere. I expect Dumbledore's letting Molly know now.'

'We've got to go to St Mungos,' said Ginny urgently, She looked around at her brothers; they were of course still in their pyjamas. 'Sirius, can you lend us cloaks or anything?'

'Hang on, you can't go tearing off to St Mungo's!' said Sirius.

'Course we can go to St Mungo's if we want,' said Fred, with a mulish expression. 'He's our dad!'

'And how are you going to explain how you knew Arthur was attacked before the hospital even let his wife know?'

'What does that matter?' said George hotly.

'It matters because we don't want to draw attention to the fact that Harry is having visions of things that are happening hundreds of miles away!' said Sirius angrily. 'Have you any idea what the Ministry would make off that information?'

Fred and George looked as though they could not care less what the Ministry made of anything. Ron was still ashen-faced and silent.

Ginny said, 'Somebody else could have told us . . . we could have heard it somewhere other than Harry.'

'Like who?' said Sirius impatiently. 'Listen, your dad's been hurt while on duty for the Order and the circumstances are fishy enough without his children knowing about it seconds after it happened, you could seriously damage the Order's — '

'We don't care about the dumb Order!' shouted Fred.

'It's our dad dying we're talking about!' yelled George.

'Your father knew what he was getting into and he won't thank you for messing things up for the Order!' said Sirius, equally angry. 'This is how it is — this is why you're not in the Order — you don't understand — there are things worth dying for!'

'Easy for you to say, stuck here!' bellowed Fred. 'I don't see you risking your neck!'

The little colour remaining in Sirius's face drained from it. He looked for a moment as though he would quite like to hit Fred, but when he spoke, it was in a voice of determined calm.

'I know it's hard, but we've all got to act as though we don't know anything yet. We've got to stay put, at least until we hear from your mother, all right?'

Fred and George still looked mutinous. Ginny, however, took a few steps over to the nearest chair and sank into it. Harry looked at Ron, who made a funny movement somewhere between a nod and a shrug, and they sat down too. The twins glared at Sirius for another minute, then took seats either side of Ginny.

'That's right,' said Sirius encouragingly, 'come on, lets all . . . let's all have a drink while we're waiting. Accio Butterbeer! '

He raised his wand as he spoke and half a dozen bottles came flying towards them out of the pantry, skidded along the table, scattering the debris of Sirius's meal, and stopped neatly in front of the six of them. They all drank, and for a while the only sounds were those of the crackling of the kitchen fire and the soft thud of their bottles on the table.

Harry was only drinking to have something to do with his hands. His stomach was full of horrible hot, bubbling guilt. They would not be here if it were not for him; they would all still be asleep in bed. And it was no good telling himself that by raising the alarm he had ensured that Mr Weasley was found, because there was also the inescapable business of it being he who had attacked Mr Weasley in the first place.