‘She's waiting for us just up here,’ said Mrs. Weasley stiffly, averting her eyes from the lolloping black dog beside Harry.

An old woman greeted them on the corner. She had tightly curled grey hair and wore a purple hat shaped like a pork pie.

‘Wotcher, Harry,’ she said, winking. ‘Better hurry up, hadn't we, Molly?’ she added, checking her watch.

‘I know, I know,’ moaned Mrs. Weasley, lengthening her stride, ‘but Mad-Eye wanted to wait for Sturgis.... If only Arthur could have got us cars from the Ministry again ... but Fudge won't let him borrow so much as an empty ink bottle these days... How Muggles can stand travelling without magic...’

But the great black dog gave a joyful bark and gambolled around them, snapping at pigeons and chasing its own tail. Harry couldn't help laughing. Sirius had been trapped inside for a very long time. Mrs. Weasley pursed her lips in an almost Aunt Petunia-ish way.

It took them twenty minutes to reach King's Cross on foot and nothing more eventful happened during that time than Sirius scaring a couple of cats for Harry's entertainment. Once inside the station they lingered casually beside the barrier between platforms nine and ten until the coast was clear, then each of them leaned against it in turn and fell easily through on to platform nine and three-quarters, where the Hogwarts Express stood belching sooty steam over a platform packed with departing students and their families. Harry inhaled the familiar smell and felt his spirits soar.... He was really going back ...

‘I hope the others make it in time,’ said Mrs. Weasley anxiously, staring behind her at the wrought-iron arch spanning the platform, through which new arrivals would come.

‘Nice dog, Harry!’ called a tall boy with dreadlocks.

‘Thanks, Lee,’ said Harry, grinning, as Sirius wagged his tail frantically.

‘Oh good,’ said Mrs. Weasley, sounding relieved, ‘here's Alastor with the luggage, look...’

A porter's cap pulled low over his mismatched eyes, Moody came limping through the archway pushing a trolley loaded with their trunks.

‘All okay,’ he muttered to Mrs. Weasley and Tonks, ‘don't think we were followed....’

Seconds later, Mr. Weasley emerged on to the platform with Ron and Hermione. They had almost unloaded Moody's luggage trolley when Fred, George, and Ginny turned up with Lupin.

‘No trouble?’ growled Moody.

‘Nothing,’ said Lupin.

‘I'll still be reporting Sturgis to Dumbledore,’ said Moody, ‘that's the second time he's not turned up in a week. Getting as unreliable as Mundungus.’

‘Well, look after yourselves,’ said Lupin, shaking hands all round. He reached Harry last and gave him a clap on the shoulder. ‘You too, Harry. Be careful.’

‘Yeah, keep your head down and your eyes peeled,’ said Moody, shaking Harry's hand too. ‘And don't forget, all of you—careful what you put in writing. If in doubt, don't put it in a letter at all.’

‘It's been great meeting all of you,’ said Tonks, hugging Hermione and Ginny. ‘We'll see you soon, I expect.’

A warning whistle sounded; the students still on the platform started hurrying on to the train.

‘Quick, quick,’ said Mrs. Weasley distractedly, hugging them at random and catching Harry twice, ‘Write.... Be good.... If you've forgotten anything we'll send it on.... Onto the train, now, hurry....’

For one brief moment, the great black dog reared on to its hind legs and placed its front paws on Harry's shoulders, but Mrs. Weasley shoved Harry away towards the train door, hissing, ‘For heaven's sake, act more like a dog, Sirius!’

‘See you!’ Harry called out of the open window as the train began to move, while Ron, Hermione, and Ginny waved beside him. The figures of Tonks, Lupin, Moody, and Mr. and Mrs. Weasley shrank rapidly but the black dog was bounding alongside the window, wagging its tail; blurred people on the platform were laughing to see it chasing the train, then they rounded a bend, and Sirius was gone.

‘He shouldn't have come with us,’ said Hermione in a worried voice.

‘Oh, lighten up,’ said Ron, ‘he hasn't seen daylight for months, poor bloke.’

‘Well,’ said Fred, clapping his hands together, ‘can't stand around chatting all day, we've got business to discuss with Lee. See you later,’ and he and George disappeared down the corridor to the right.

The train was gathering still more speed, so that the houses outside the window flashed past, and they swayed where they stood.

‘Shall we go and find a compartment, then?’ Harry asked.