first."

What looked like the oldest boy marched toward platforms nine and ten. Harry watched, careful not to blink in case he missed it -- but just as
the boy reached the dividing barrier between the two platforms, a large crowd of tourists came swarming in front of him and by the time the last backpack had cleared away, the boy had vanished.

"Fred, you next," the plump woman said.

"I'm not Fred, I'm George," said the boy. "Honestly, woman, you call yourself our mother? CarA you tell I'm George?"

"Sorry, George, dear."

"Only joking, I am Fred," said the boy, and off he went. His twin called after him to hurry up, and he must have done so, because a second later, he had gone -- but how had he done it?

Now the third brother was walking briskly toward the barrier he was almost there -- and then, quite suddenly, he wasn't anywhere.

There was nothing else for it.

"Excuse me," Harry said to the plump woman.

"Hello, dear," she said. "First time at Hogwarts? Ron's new, too."

She pointed at the last and youngest of her sons. He was tall, thin, and gangling, with freckles, big hands and feet, and a long nose.

"Yes," said Harry. "The thing is -- the thing is, I don't know how to --"

"How to get onto the platform?" she said kindly, and Harry nodded.

"Not to worry," she said. "All you have to do is walk straight at the barrier between platforms nine and ten. Don't stop and don't be scared you'll crash into it, that's very important. Best do it at a bit of a
run if you're nervous. Go on, go now before Ron."

"Er -- okay," said Harry.