Rebecca has barely recovered her breath when a car slows down, continues hesitantly some yards past her, and stops. She hastens towards it and finds the driver leaning over, opening the passenger door.
"Do you want a lift?" he asks.
She stifles an impulse to remark that that would seem obvious, and takes in a clean, clutter-free interior, and a man in his sixties, tall and neatly dressed.
"Please," she says.
"Where do you want to go to?" the man asks.
She's about to say 'anywhere' but checks herself:
"London," she says.
"I'm going to Bowlands Wood," the man says, before going into a rigmarole as to which junctions might be best for her. She nods impatiently, casting anxious glances back down the lane towards the school.
"Any of those would be good," she says, climbing into the car.
The man reminds her to fasten her seatbelt and at last they are in motion. She closes her eyes gratefully, breathing in the smell of freshly valeted upholstery, feeling her heart still thumping in her chest.
"Are you alright?" the man asks presently. "Only you seem a bit flustered."
She looks at him again: he is clean-shaven with thinning hair and bushy eyebrows: there is a kindly look to him.
"I was running," she says.
"Ah," says the man. He studies the road again and checks the speedometer. He has brown mottling on the backs of his hands.
"Forgive me for asking," he asks presently: "But are you in some sort of trouble?"
"Trouble?" asks Rebecca, thinking: where would I start?
"With the Police?" asks the man.
"The Police?" says Rebecca: "No - only school."
"Ah," says the man. "Look, I know it's none of my business - but I've always found that in the long run it's better to face a problem than run away. We haven't come far: I could turn round and run you back?
"I'm sure it's not as bad as it seems," he adds, when Rebecca does not reply.
"Oh, it is," says Rebecca. "And thank you for the offer, but I'm not going back."
"Well, it's you decision," says the man. "Can I ask you your name?"
"It's Julia," Rebecca says.
"I'm George," says the man. "Well Julia, we should be at the Orbital Road in about an hour. Let me know where you want me to drop you off.
They drive in silence for a while. Some classical music is playing quietly on the car radio. Rebecca glances in the vanity mirror and takes in her dishevelled appearance: grass-stains and mud on her knees and skirt, the buttons of her blouse missing or hanging by threads. The adrenalin rush is diminishing: the enormity of what has happened is starting to sink in.
"Look, tell me to mind my own business," the man's voice interrupts her thoughts. "But do you have anywhere to stay?"
"Not really," says Rebecca.
"No family? No friends?"
"No," says Rebecca, and suddenly it is all too much, all she wants is for someone else to take over, look after her or tell her what she should do. She struggles against the urge to cry.
"So what are you planning to do in London?" the man asks.
"I don't know," says Rebecca. "I hadn't thought that far."
The man looks thoughtful. Outside the car window traffic is increasing, and buildings are taking over from fields.
"It's getting a bit late to be alone in London with nowhere to stay," the man says. "If you'd like to you can stay at my flat."
"Could I?" says Rebecca, with more animation than she's displayed since she got into the car. "I'd be so grateful - that's so kind."
The flat is small but neat and clean - perhaps obsessively so. The furniture is good quality but old-fashioned, mostly dark oak. The dining table and chairs are similar to those Rebecca remembers from her grandparents' shop.
"I bought it four years ago," George explains. "My wife died - we have no children and the house seemed too big."
"I'm sorry," Rebecca says.
"We had a long and happy marriage," says George. He hands her a photo from the mantelpiece: George and his wife from their younger days, smiling, arms around one-another. There are many more such photos distributed around the room.
"I expect you'd like a shower," George says, with a glance at the mud on her knees. "Or perhaps a bath?"
A bath sounds like heaven to Rebecca: so George switches on the immersion and tells her it will take an hour.
"And food," says George. "There's not much in the flat, but we could order a takeaway. I've got some menus here."
He takes some glossy menu cards from a drawer and hands them to her. Chinese; Indian; Thai. Her mouth starts to water.
"These look lovely," she says. "But I don't have any money."