Amy awoke to a whooshing sound. It was Rahul outside the TurboChaser winding up the tent. The coloured cloth was funnelling back inside the chimney. Which meant that Amy suddenly felt a bit exposed, lying on some glass plates in the open air in the middle of a field.

She rubbed her eyes. “What time is it?”

“Go away,” said Jack, who normally said that when woken up. In fact, he normally said it over and over again, until forced out of bed much later by Suzi.

Amy looked out. The sun, which had come up a while ago, was bright against a blue morning sky. The field they were in was very green. In her vision, Rahul suddenly appeared, holding something rolled up. It looked like a poster.

“What is that?” said Amy.

Rahul unrolled it. It was a long piece of paper, more like a banner than a poster. On it he had written:

He had drawn a series of doodles round these words, of various crazy-looking cars.

Amy nodded. Then she said, “I’ll ask again. What is that?”

“I’ve made up an event,” said Rahul. “The Crazy Car Rally!”

“And …?”

“And if I put this up somewhere on the car, people who see us on the road will think, Oh right, I see. It’s a crazy car going to some sort of crazy car event. And then they won’t think about it any more. It’s sort of like an invisibility cloak. Except not.”

“OK, I get it! Brilliant, clever!”

“Thanks!” said Rahul, and he started attaching the banner to the front of the car.

“Why so many exclamation marks?” said Amy.

“That’s what you do if you’re the kind of person who goes to the Crazy Car Rally. You use a lot of exclamation marks. To show how crazy you are.”

“Right. I’ll bear that in mind. OK, I think we should be getting on. Jack!”

“Go away.”

“No, come on.”

“What’s for breakfast?”

“Um … more of Janet’s beans?”

“Go away.”

Rahul started folding up the glass plates. Which involved rolling Jack over on his side.

“I said go away.”

Amy sighed. “OK, we’ll come back to you. Janet!”

Janet popped her head out of her sleeping bag.

“I was awake already. Just under the covers!”

“Great,” said Amy.

“Because it’s easier to see your phone there. It’s too light out here.”

“Right. You’ve got a signal here?”

“Some of the time … Anyone for beans?”

BLEEP! BLEEP!

Janet dived back into her sleeping bag.

“Well …” said Rahul. “Jack’s still asleep …”

“I’m not.”

“Oh.”

“Go away.”

“Right. But I’ve folded up the car, the tent material has gone back into the chimney – so we could have breakfast and then—”

“Janet …” said Amy, who had spent the last few minutes thinking and frowning at Janet’s sleeping bag.

“Yes …” she said, muffled, from inside it.

“Who are you texting?”

“Mum and Dad!” she said.

Rahul, who was getting into the passenger seat, stopped and looked at her. Jack, who had his eyes closed and had been doing his very best not to wake up properly, opened them, and sat up.

“Er, since when?” said Jack.

“Well, I sent them a text last night,” said Janet. “But they haven’t replied yet, so—”

“Oh no,” said Rahul.

“What?” said Janet.

And Amy said:

“And … what are you saying in your message now?”

Janet’s head came out of the sleeping bag again. “Don’t worry! Just that we’re OK, and having a great time being chased by bulls and stuff. I’m not telling them where we are! I’m not an idiot. Actually, where are we?”

“I’m not entirely sure,” said Rahul.

“But you could probably find out,” said Jack, “from Location Services on your phone. As could anyone who’s in contact with your phone. Certainly anyone who, I don’t know, bought your phone for you and has access to your account.”

“Not to mention,” said Rahul, “anyone who’s had a message since last night. So could have been tracking us for a while.”

There was a pause. Janet frowned at him. Then she looked at her phone.

“Oops,” she said.