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The Difference Engine: A Novel Paperback – July 26, 2011
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The 20th anniversary edition of the classic steampunk novel
With new commentary by the authors
1855: The Industrial Revolution is in full swing, powered by steam-driven cybernetic Engines. Charles Babbage perfects his Analytical Engine, and the computer age arrives a century ahead of its time. Three extraordinary characters race toward a rendezvous with the future: Sybil Gerard—fallen woman, politician’s tart, daughter of a Luddite agitator; Edward “Leviathan” Mallory—explorer and paleontologist; Laurence Oliphant—diplomat, mystic, and spy. Their adventure begins with the discovery of a box of punched Engine cards of unknown origin and purpose. Cards someone wants badly enough to kill for.
Part detective story, part historical thriller, The Difference Engine took the science fiction community by storm when it was first published twenty years ago. This special anniversary edition features an Introduction by Cory Doctorow and a collaborative essay from the authors looking back on their creation. Provocative, compelling, intensely imagined, this novel is poised to impress a whole new generation.
- Print length512 pages
- LanguageEnglish
- PublisherSpectra
- Publication dateJuly 26, 2011
- Dimensions5.4 x 1.1 x 8.21 inches
- ISBN-100440423627
- ISBN-13978-0440423621
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Editorial Reviews
Review
“Smartly plotted, wonderfully crafted, and written with sly literary wit . . . spins marvelously and runs like a dream.”—Entertainment Weekly
“Splendid . . . highly imaginative.”—Chicago Tribune
“A ripping adventure yarn.”—Los Angeles Times
“[A] tour-de-force.”—The Philadelphia Inquirer
About the Author
Bruce Sterling is an Austin-born science fiction writer and Net critic, internationally recognized as a cyberspace theorist who is also considered one of the forefathers of the cyberpunk movement in science fiction. He has won a John W. Campbell Award, two Hugo Awards, and an Arthur C. Clarke Award.
Excerpt. © Reprinted by permission. All rights reserved.
The Angel of Goliad
Composite image, optically encoded by escort-craft of the trans-Channel airship Lord Brunel: aerial view of suburban Cherbourg, October 14, 1905.
A villa, a garden, a balcony.
Erase the balcony’s wrought-iron curves, exposing a bath-chair and its occupant. Reflected sunset glints from the nickel-plate of the chair’s wheel-spokes.
The occupant, owner of the villa, rests her arthritic hands upon fabric woven by a Jacquard loom.
These hands consist of tendons, tissue, jointed bone. Through quiet processes of time and information, threads within the human cells have woven themselves into a woman.
Her name is Sybil Gerard.
Below her, in a neglected formal garden, leafless vines lace wooden trellises on whitewashed, flaking walls. From the open windows of her sickroom, a warm draft stirs the loose white hair at her neck, bringing scents of coal-smoke, jasmine, opium.
Her attention is fixed upon the sky, upon a silhouette of vast and irresistible grace--metal, in her lifetime, having taught itself to fly. In advance of that magnificence, tiny unmanned aeroplanes dip and skirl against the red horizon.
Like starlings, Sybil thinks.
The airship’s lights, square golden windows, hint at human warmth. Effortlessly, with the incomparable grace of organic function, she imagines a distant music there, the music of London: the passengers promenade, they drink, they flirt, perhaps they dance.
Thoughts come unbidden, the mind weaving its perspectives, assembling meaning from emotion and memory.
She recalls her life in London. Recalls herself, so long ago, making her way along the Strand, pressing past the crush at Temple Bar. Pressing on, the city of Memory winding itself about her--till, by the walls on Newgate, the shadow of her father’s hanging falls . . .
And Memory turns, deflected swift as light, down another byway--one where it is always evening. . . .
It is January 15, 1855.
A room in Grand’s Hotel, Piccadilly.
One chair was propped backward, wedged securely beneath the door’s cut-glass knob. Another was draped with clothing: a woman’s fringed mantelet, a mud-crusted skirt of heavy worsted, a man’s checked trousers and cutaway coat.
Two forms lay beneath the bedclothes of the laminated-maple four-poster, and off in the iron grip of winter Big Ben bellowed ten o’clock, great hoarse calliope sounds, the coal-fired breath of London.
Sybil slid her feet through icy linens to the warmth of the ceramic bottle in its wrap of flannel. Her toes brushed his shin. The touch seemed to start him from deep deliberation. That was how he was, this Dandy Mick Radley.
She’d met Mick Radley at Laurent’s Dancing Academy, down Windmill Street. Now that she knew him, he seemed more the sort for Kellner’s in Leicester Square, or even the Portland Rooms. He was always thinking, scheming, muttering over something in his head. Clever, clever. It worried her. And Mrs. Winterhalter wouldn’t have approved, for the handling of “political gentlemen” required delicacy and discretion, qualities Mrs. Winterhalter believed she herself had a‑plenty, while crediting none to her girls.
“No more dollymopping, Sybil,” Mick said. One of his pronouncements, something about which he’d made up his clever mind.
Sybil grinned up at him, her face half-hidden by the blanket’s warm edge. She knew he liked the grin. Her wicked-girl grin. He can’t mean that, she thought. Make a joke of it, she told herself. “But if I weren’t a wicked dollymop, would I be here with you now?”
“No more playing bobtail.”
“You know I only go with gentlemen.”
Mick sniffed, amused. “Call me a gentleman, then?”
“A very flash gentleman,” Sybil said, flattering him. “One of the fancy. You know I don’t care for the Rad Lords. I spit on ’em, Mick.”
Sybil shivered, but not unhappily, for she’d run into a good bit of luck here, full of steak-and-taters and hot chocolate, in bed between clean sheets in a fashionable hotel. A shiny new hotel with central steam-heat, though she’d gladly have traded the restless gurgling and banging of the scrolled gilt radiator for the glow of a well-banked hearth.
And he was a good-looking cove, this Mick Radley, she had to admit, dressed very flash, had the tin and was generous with it, and he’d yet to demand anything peculiar or beastly. She knew it wouldn’t last, as Mick was a touring gent from Manchester, and gone soon enough. But there was profit in him, and maybe more when he left her, if she made him feel sorry about it, and generous.
Mick reclined into fat feather-pillows and slid his manicured fingers behind his spit-curled head. Silk nightshirt all frothy with lace down the front--only the best for Mick. Now he seemed to want to talk a bit. Men did, usually, after a while--about their wives, mostly.
But for Dandy Mick, it was always politics. “So, you hate the Lordships, Sybil?”
“Why shouldn’t I?” Sybil said. “I have my reasons.”
“I should say you do,” Mick said slowly, and the look he gave her then, of cool superiority, sent a shiver through her.
“What d’ye mean by that, Mick?”
“I know your reasons for hating the Government. I have your number.”
Surprise seeped into her, then fear. She sat up in bed. There was a taste in her mouth like cold iron.
“You keep your card in your bag,” he said. “I took that number to a rum magistrate I know. He ran it through a government Engine for me, and printed up your Bow Street file, rat-a-tat-tat, like fun.” He smirked. “So I know all about you, girl. Know who you are . . .”
She tried to put a bold face on it. “And who’s that, then, Mr. Radley?”
“No Sybil Jones, dearie. You’re Sybil Gerard, the daughter of Walter Gerard, the Luddite agitator.”
He’d raided her hidden past.
Machines, whirring somewhere, spinning out history.
Now Mick watched her face, smiling at what he saw there, and she recognized a look she’d seen before, at Laurent’s, when first he’d spied her across the crowded floor. A hungry look.
Her voice shook. “How long have you known about me?”
“Since our second night. You know I travel with the General. Like any important man, he has enemies. As his secretary and man-of-affairs, I take few chances with strangers.” Mick put his cruel, deft little hand on her shoulder. “You might have been someone’s agent. It was business.”
Sybil flinched away. “Spying on a helpless girl,” she said at last. “You’re a right bastard, you are!”
But her foul words scarcely seemed to touch him--he was cold and hard, like a judge or a lordship. “I may spy, girl, but I use the Government’s machinery for my own sweet purposes. I’m no copper’s nark, to look down my nose at a revolutionary like Walter Gerard--no matter what the Rad Lords may call him now. Your father was a hero.”
He shifted on the pillow. “My hero--that was Walter Gerard. I saw him speak, on the Rights of Labour, in Manchester. He was a marvel--we all cheered till our throats was raw! The good old Hell-Cats . . .” Mick’s smooth voice had gone sharp and flat, in a Mancunian tang. “Ever hear tell of the Hell-Cats, Sybil? In the old days?”
“A street-gang,” Sybil said. “Rough boys in Manchester.”
Mick frowned. “We was a brotherhood! A friendship youth-guild! Your father knew us well. He was our patron politician, you might say.”
“I’d prefer it if you didn’t speak of my father, Mr. Radley.”
Mick shook his head at her impatiently. “When I heard they’d tried and hanged him”--the words like ice behind her ribs--“me and the lads, we took up torches and crowbars, and we ran hot and wild. . . . That was Ned Ludd’s work, girl! Years ago . . .” He picked delicately at the front of his nightshirt. “ ’Tis not a tale I tell to many. The Government’s Engines have long memories.”
She understood it now--Mick’s generosity and his sweet-talk, the strange hints he’d aimed at her, of secret plans and better fortune, marked cards and hidden aces. He was pulling her strings, making her his creature. The daughter of Walter Gerard was a fancy prize, for a man like Mick.
She pulled herself out of bed, stepping across icy floorboards in her pantalettes and chemise.
She dug quickly, silently, through the heap of her clothing. The fringed mantelet, the jacket, the great sagging cage of her crinoline skirt. The jingling white cuirass of her corset.
“Get back in bed,” Mick said lazily. “Don’t get your monkey up. ’Tis cold out there.” He shook his head. “ ’Tis not like you think, Sybil.”
She refused to look at him, struggling into her corset by the window, where frost-caked glass cut the upwashed glare of gaslight from the street. She cinched the corset’s laces tight across her back with a quick practiced snap of her wrists.
“Or if it is,” Mick mused, watching her, “ ’tis only in small degree.”
Across the street, the opera had let out--gentry in their cloaks and top-hats. Cab-horses, their backs in blankets, stamped and shivered on the black macadam. White traces of clean suburban snow still clung to the gleaming coachwork of some lordship’s steam-gurney. Tarts were working the crowd. Poor wretched souls. Hard indeed to find a kind face amid those goffered shirts and diamond studs, on such a cold night. Sybil turned toward Mick, confused, angry, and very much afraid. “Who did you tell about me?”
“Not a living soul,” Mick said, “not even my friend the General. And I won’t be peaching on you. Nobody’s ever said Mick Radley’s indiscreet. So get back in bed.”
“I shan’t,” Sybil said, standing straight, her bare feet freezing on the floorboards. “Sybil Jones may share your bed--but the daughter of Walter Gerard is a personage of substance!”
Mick blinked at her, surprised. He thought it over, rubbing his narrow chin, then nodded. “ ’Tis my sad loss, then, Miss Gerard.” He sat up in bed and pointed at the door, with a dramatic sweep of his arm. “Put on your skirt, then, and your brass-heeled dolly-boots, Miss Gerard, and out the door with you and your substance. But ’twould be a great shame if you left. I’ve uses for a clever girl.”
“I should say you do, you blackguard,” said Sybil, but she hesitated. He had another card to play--she could sense it in the set of his face.
He grinned at her, his eyes slitted. “Have you ever been to Paris, Sybil?”
“Paris?” Her breath clouded in midair.
“Yes,” he said, “the gay and the glamorous, next destination for the General, when his London lecture tour is done.” Dandy Mick plucked at his lace cuffs. “What those uses are, that I mentioned, I shan’t as yet say. But the General is a man of deep stratagem. And the Government of France have certain difficulties that require the help of experts. . . .” He leered triumphantly. “But I can see that I bore you, eh?”
Sybil shifted from foot to foot. “You’ll take me to Paris, Mick,” she said slowly, “and that’s the true bill, no snicky humbugging?”
“Strictly square and level. If you don’t believe me, I’ve a ticket in my coat for the Dover ferry.”
Sybil walked to the brocade armchair in the corner, and tugged at Mick’s greatcoat. She shivered uncontrollably, and slipped the greatcoat on. Fine dark wool, like being wrapped in warm money.
“Try the right front pocket,” Mick told her. “The card-case.” He was amused and confident--as if it were funny that she didn’t trust him. Sybil thrust her chilled hands into both pockets. Deep, plush-lined . . .
Her left hand gripped a lump of hard cold metal. She drew out a nasty little pepperbox derringer. Ivory handle, intricate gleam of steel hammers and brass cartridges, small as her hand but heavy.
“Naughty,” said Mick, frowning. “Put it back, there’s a girl.”
Sybil put the thing away, gently but quickly, as if it were a live crab. In the other pocket she found his card-case, red morocco leather; inside were business cards, cartes-de-visite with his Engine-stippled portrait, a London train timetable.
And an engraved slip of stiff creamy parchment, first-class passage on the Newcomen, out of Dover.
“You’ll need two tickets, then,” she hesitated, “if you really mean to take me.”
Mick nodded, conceding the point. “And another for the train from Cherbourg, too. And nothing simpler. I can wire for tickets, downstairs at the lobby desk.”
Sybil shivered again, and wrapped the coat closer. Mick laughed at her. “Don’t give me that vinegar phiz. You’re still thinking like a dollymop; stop it. Start thinking flash, or you’ll be of no use to me. You’re Mick’s gal now--a high-flyer.”
She spoke slowly, reluctantly. “I’ve never been with any man who knew I was Sybil Gerard.” That was a lie, of course--there was Egremont, the man who had ruined her. Charles Egremont had known very well who she was. But Egremont no longer mattered--he lived in a different world, now, with his po-faced respectable wife, and his respectable children, and his respectable seat in Parliament.
And Sybil hadn’t been dollymopping, with Egremont. Not exactly, anyway. A matter of degree. . . .
She could tell that Mick was pleased at the lie she’d told him. It had flattered him.
Mick opened a gleaming cigar-case, extracted a cheroot, and lit it in the oily flare of a repeating match, filling the room with the candied smell of cherry tobacco.
“So now you feel a bit shy with me, do you?” he said at last. “Well, I prefer it that way. What I know, that gives me a bit more grip on you, don’t it, than mere tin.”
His eyes narrowed. “It’s what a cove knows that counts, ain’t it, Sybil? More than land or money, more than birth. Information. Very flash.”
Sybil felt a moment of hatred for him, for his ease and confidence. Pure resentment, sharp and primal, but she crushed her feelings down. The hatred wavered, losing its purity, turning to shame. She did hate him--but only because he truly knew her. He knew how far Sybil Gerard had fallen, that she had been an educated girl, with airs and graces, as good as any gentry girl, once.
From the days of her father’s fame, from her girlhood, Sybil could remember Mick Radley’s like. She knew the kind of boy that he had been. Ragged angry factory-boys, penny-a-score, who would crowd her father after his torchlight speeches, and do whatever he commanded. Rip up railroad tracks, kick the boiler-plugs out of spinning jennies, lay policemen’s helmets by his feet. She and her father had fled from town to town, often by night, living in cellars, attics, anonymous rooms-to-let, hiding from the Rad police and the daggers of other conspirators. And sometimes, when his own wild speeches had filled him with a burning elation, her father would embrace her and soberly promise her the world. She would live like gentry in a green and quiet England, when King Steam was wrecked. When Byron and his Industrial Radicals were utterly destroyed. . . .
Product details
- Publisher : Spectra; Anniversary edition (July 26, 2011)
- Language : English
- Paperback : 512 pages
- ISBN-10 : 0440423627
- ISBN-13 : 978-0440423621
- Item Weight : 14.1 ounces
- Dimensions : 5.4 x 1.1 x 8.21 inches
- Best Sellers Rank: #85,925 in Books (See Top 100 in Books)
- #448 in Technothrillers (Books)
- #602 in Cyberpunk Science Fiction (Books)
- #3,060 in Science Fiction Adventures
- Customer Reviews:
About the authors

William Gibson is the award-winning author of Neuromancer, Mona Lisa Overdrive, The Difference Engine, with Bruce Sterling, Virtual Light, Idoru, All Tomorrow's Parties and Pattern Recognition. William Gibson lives in Vancouver, Canada. His latest novel, published by Penguin, is Spook Country (2007).

Bruce Sterling, author, journalist, editor, and critic,
was born in 1954. Best known for his ten science fiction
novels, he also writes short stories, book reviews,
design criticism, opinion columns, and introductions
for books ranging from Ernst Juenger to Jules Verne.
His nonfiction works include THE HACKER CRACKDOWN:
LAW AND DISORDER ON THE ELECTRONIC FRONTIER (1992),
TOMORROW NOW: ENVISIONING THE NEXT FIFTY YEARS (2003),
and SHAPING THINGS (2005).
He is a contributing editor of WIRED magazine
and writes a weblog. During 2005,
he was the "Visionary in Residence" at Art Center
College of Design in Pasadena. In 2008 he
was the Guest Curator for the Share Festival
of Digital Art and Culture in Torino, Italy,
and the Visionary in Residence at the Sandberg
Instituut in Amsterdam. In 2011 he returned to
Art Center as "Visionary in Residence" to run
a special project on Augmented Reality.
He has appeared in ABC's Nightline, BBC's The Late Show,
CBC's Morningside, on MTV and TechTV, and in Time,
Newsweek, The Wall Street Journal, the New York Times,
Fortune, Nature, I.D., Metropolis, Technology Review,
Der Spiegel, La Stampa, La Repubblica, and many other venues.
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Top reviews from the United States
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I get the feeling that the book really has no idea what to think of itself, either. In the last few paragraphs we get a peak at the novel's purpose--although a vague peak, one that even its Wikipedia entry misinterprets. I don't want to go into it here for fear of spoilers, but I found the ending abrupt and unsatisfying, even if it is appropriate to the story. It just doesn't do quite enough to justify the 500 meandering pages that preceded it. When I got excited for it to resolve, it digressed. When I got to the ending and turned the page to arrive at the afterword, I was surprised to see that I'd already finished it, because I didn't really understand what it had accomplished.
Through the entire book, I found myself wondering where the story was heading, since the narrative lacked traditional structure or even a single focal character. It's a story about a MacGuffin, the characters are incidental. It's also a story about a time and place. While the narrative frustrated me, I had a lot of fun with the alternate history of steam-ified 19th Century London. I loved the jargon, the nods to real life events. I loved Benjamin Disraeli as a tabloid-writer-turned socialite (in my mind, he is basically Truman Capote). I loved the mentions of the Sepoy Rebellion or the French using mummies to fuel their engine in Egypt. But these are artifacts, Easter eggs. And they point to the central problem with this book: it doesn't stand that well on its own. It's almost TOO post-modern. If you know you're history, you'll laugh out loud while you turn the pages. If you identify with cyberpunk, you'll love seeing it transposed onto brass. But if you just want to read a good book, this will frustrate the hell out of you.
So, in the end, it's a rambling, self-important chin-scratcher with some incredibly winning scenes that will, at the very least, drop you off in the present day thinking to yourself "What the hell just happened?" It's important that books like this exist. It's not for everyone, but I'm glad I read it.
That said, I highly recommend this novel to fans of Cyberpunk and Steampunk. Rich and redolent with 19th Century period detail, it is an espionage caper set in a world transformed by a single “What If?” tweak: What if Charles Babbage’s “difference engine”, a large mechanical computer that would have been capable of algebraic computation had it been completed and worked – what if it had come to fruition? The computer revolution, sans electronics, rewrites the history we know from that point onward.
I will not spoil it with plot details in this review. Armed with that knowledge (and the fact that one can now easily look up the names of various historical characters on the Internet to learn more and better appreciate the alternate history), I recommend that science-fiction fans looking for what may be arguably the first Steampunk novel delve into this, stick with it all the way to the end, and read the Afterword. Perhaps read it twice and catch what you likely missed on the first read.
(NOTE: It’s tempting to think of Jules Verne and H.G. Wells as “Steampunk”, but there’s a fine distinction. They wrote of the present time or near-future affected by scientific progress beyond where it was, whereas Steampunk imagines an alternate past affected by modern tech that uses the milieu of past techniques and materials.)
Top reviews from other countries
There are a few exciting bits, there is one shockingly explicit sex scene with some rather unnecessary words which has a completely different tone to the rest of the book and once it's done it's unimportant. You spend ages reading about characters only for them to be unimportant, or dropped and never mentioned again.
I liked the scene - the imagery, the setting I guess. And the idea is great too, but the execution not so great.
In conclusion: I read most of it, and will attempt to read to the end, but I am disappointed.
The storyline is very lame almost not existing, characters totally unbelievable and I couldn't get to like them.
Waste of time.
It is vastly longer than it needs to be, the plot is not the tightest, I do rather wonder if the joint authors just wrote alternate chapters. However if you want to luxuriate in this cod-Victorian style of adventure, then it is well thought out, intelligent stuff.

