No, that wouldn’t work. The increase had happened before Mike rescued Hardy and before she’d come through to the Blitz. And before Gerald had gone to Bletchley Park. And it couldn’t have been anything she did before because she’d been able to go back through to Oxford after VE-Day. And Eileen had—

“It’s seven,” Eileen said, coming back upstairs.

Polly insisted they wait another half hour, and then they went off to Holborn, after first extracting a promise from Miss Laburnum to take down any messages for them and promising in turn to try to find a suitable candle for the Ghost of Christmas Past’s crown.

“And a green fur-lined cloak for the Ghost of Christmas Present,” Miss Laburnum said.

“If I had a green fur-lined cloak, I’d wear it myself,” Eileen said as they walked over to Notting Hill Gate. “My coat isn’t half warm enough for this horrid weather. And black is so grim.”

“Everyone’s wearing black,” Polly snapped. “There’s a war on. And no one has a new coat. Everyone’s making do.”

“I didn’t …,” Eileen said, turning puzzled eyes on her. “I was joking.”

“I know, I’m sorry,” Polly said. “It’s only—”

“You’re worried about Mike,” she said. “I know. He knew you were busy with the play. He probably didn’t want to distract you by phoning.”

Distract me? Polly thought bitterly.

“I’m sure he’ll ring us tomorrow.” Eileen linked her arm through Polly’s and chattered the rest of the way to Holborn about how wonderful the play had been and how hungry she was and about Agatha Christie.

“Wouldn’t it be wonderful if I actually saw her? She lived in London during the war and worked as a dispenser in the hospitals. Unfortunately, she won’t be in the tube shelters. She had an irrational fear of being buried alive.”

Not all that irrational, Polly thought, remembering Marble Arch. And Marjorie.

But it was a pity they had no chance of encountering her. They could have used her help, though Polly doubted whether even Agatha Christie could solve The Mystery of the Drops Which Wouldn’t Open.

“I wonder if she took the tube to work,” Eileen said. “If she—here’s our stop—if she did, we might see her on her way home.”

They got off the train.

“I do hope the queue for the canteen isn’t very long,” Eileen said, starting through the clot of passengers getting off and on and down the platform past a band of urchins up to no good, toward a group of young women in FANY uniforms.

Polly stopped.

“Come along, I’m starving,” Eileen said, beckoning to her.

A sailor passed, going the other way. Polly turned and walked swiftly after him along the platform as the train pulled out and then, as she reached the safety of the archway, looked back.

Eileen was coming after her, pushing through the FANYs, calling “Polly!”

She hurried through the arch and along the tunnel to the hall and onto the escalator.

“Where are you going?” Eileen asked breathlessly, catching up to her halfway up.