“I don’t know. I’ll check Townsend Brothers’ book department to see if they have an atlas or something.”

“Would they have an ABC?” Eileen asked.

“Yes, I looked up the trains to Backbury in it,” Polly said, wondering why she hadn’t thought of using a railway guide. It listed the stations alphabetically. They’d be able to find Gerald’s airfield under D. Or T. Or P. “Did you use an ABC when you brought the children to London?”

“No, they used an ABC in one of Agatha Christie’s novels to solve the mystery,” Eileen said. “And we can use it to solve ours.”

If only it were that simple, Polly thought.

Eileen looked up at the ceiling. “Is that sound bombers?”

“No. Rain. But luckily,” Polly said lightly, “we have an umbrella.”

She took the tea things downstairs, made a sandwich to take to Mike, and set off for Notting Hill Gate with Eileen. It was coming down hard—an icy downpour that made Polly glad Miss Laburnum had brought Eileen the coat and made her wish she’d brought a second umbrella. It was impossible to huddle under Eileen’s and lead her along the wet, dark streets at the same time, and twice Polly stepped in an ankle-deep puddle.

“I hate it here,” Eileen said. “I don’t care if I do sound like Theodore. I want to go home.”

“Did you tell Theodore’s mother your new address so your retrieval team can find you?”

“Yes, and her neighbor Mrs. Owen. And on the train in from Stepney, I wrote the vicar. I wanted to ask you about that. Do you think I must give Alf and Binnie my new address?”

“Are those the children you told me about? The haystack-fire starters?”

“Yes,” Eileen said, “and if I tell them where I am, they’re likely to take it as an invitation, and they’re—”

“Dreadful,” Polly finished.

“Yes, and the only way the retrieval team would know where they are was if the vicar told them, and I’ve already told him where I am, so the retrieval team wouldn’t need—”

“Then I don’t see any reason you need to contact them,” Polly said, leading her down the steps into the tube station, hoping they wouldn’t run into any of the troupe. “Where did Mike say he’d meet us? At the foot of the escalator?”

“No, in the emergency staircase. There’s one here just like the one in Oxford Circus.”

Good, Polly thought, following Eileen through the tunnel. We’ll be safe from the troupe there. And if Mike’s been waiting in it, I needn’t worry about his having overheard people discussing Padgett’s.

But Mike wasn’t there. Eileen and Polly climbed up three flights and then down as many, calling his name, but there was no answer. “Should we go to Oxford Circus?” Eileen asked. “That’s what he said to do if we got separated.”

“No, he’ll be here soon.” Polly sat down on the steps.

“The raids weren’t on Regent Street tonight, were they?” Eileen asked anxiously.