Excerpt from The Undertow by Jo Baker, plus links to reviews, author biography & more

The Electric Theatre, York Road, Battersea, London August 14, 1914

THE LIGHTS GO OUT. The cheap seats erupt in shrieks and roars, as though the dark has changed everyone into wild animals and birds. It's hot. The stench is terrible. Amelia fumbles for William's hand.

A mechanical whir and clatter starts up behind her. She twists round to look over her shoulder. All she can see is a saturating flood of light, which makes her blink, and then the light begins to flip and flicker.

"It's starting," William says.

Amelia turns back in her seat and cranes to look between the heads in front, through the twists of tobacco smoke.

A man snaps into existence. The audience cheers. He bows, blows kisses. He's framed by rich, draped curtains, and wears an elegant morning suit. He is very handsome. He is soft shades of porcelain and charcoal, silky-grey.

"That's Max," William says. "Max Linder."

Amelia's hand squeezes William's. "What's the story?"

"He's on stage," William says. "Taking a curtain call."

The miracle of it. A gentleman like that, bowing to them; to the audience crammed there, two kids to a seat, all of them jabbering away as if this was nothing. The place smelling of old clothes and boots and sweat and bad teeth and disease.

"What do you think?" William asks.

She just shakes her head, smiles.

The image changes: she sees a husband and wife now, talking. There's a title card: the lady wants to meet Max; can the husband send a note? The kids in the cheap seats gabble out the words, translating or just reading out loud for their parents: a tangle of English, Yiddish, Italian. It's like bedlam in the theatre, but on the screen everything is beautiful: the husband is in evening dress, and the lady's wrap is just the loveliest thing Amelia's ever seen, the silky drape of it. It would feel so good on the skin. But the husband is jealous. You can tell that by his eyebrows, his fists.

The man in front of her leans to talk to his neighbour, and she moves closer to William, shoulder against his shoulder, to peer round the obstacle.

In the dark, William draws her hand into his lap, unbuttons her glove and peels it off. She repossesses the empty glove, smoothes it flat on her lap. He twists the narrow wedding ring around her finger, then strokes her palm with his thumb, the calloused skin grazing and snagging on her hot skin. It's distracting, but she doesn't pull her hand away. Tonight he is allowed.

She glances round at him, at his angular profile. His eyes are on the distance, watching the screen; they catch the flickering light and flash green. Then he laughs, creases fanning, and she looks at the screen to see what made him laugh. The maid lays out a china coffee set, and Max is charming, and the husband seethes, and, while the wife and Max are turned away to admire a painting, the husband pours a dose of salts into Max's coffee!

The audience roars. Amelia claps her gloved hand over her mouth.

The husband dodges over to join his wife and Max, and, when all their backs are turned, the maid, who is also beautifully dressed in hobble skirt and high heels, goes to take away the tray. Seeing the coffee is undrunk, she sets it down again, but has, by chance, turned the tray around, so that the tainted cup is set before the husband's seat. The audience roars again. Amelia's hand drops away from her face. And then, for good measure, the husband dodges round and pours another dose into what he thinks is Max's cup, but it's the wife's. They're all going to cop for it now!

"Oh my goodness!"

On screen, the three of them sit down at the coffee table, but then there's an exchange of courtesies, of sugar lumps and cream that just goes on and on and you can't bear it because you know any moment they're going to drink, but it keeps on not happening, and not happening until the husband, dainty for his bulk, smug in the expectation of Max's humiliation, lifts his china cup and sups long on his coffee. He doesn't know what's coming! A moment later, he grips his stomach and rushes for the door. Max and the wife look on, bemused. Then Max drinks, and grimaces, and has to rush out too! And then the wife! They return, with accusations, and then there's outrage, confusion, revelation, and then a caption: the wife isn't in love with Max - she just wants to be in one of his films!

Excerpted from The Undertow by Jo Baker. Copyright © 2012 by Jo Baker. Excerpted by permission of Knopf, a division of Random House, Inc. All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.