Colonel Thomas Bushell, the government’s most fearless agent, is the only man who can stop them.But this is not our world. For the stolen painting depicts a treaty between George Washington and King George III—a treaty that has kept America under British rule for two centuries. And the terrorists, who call themselves the “Sons of Liberty,” want America to be free….

    His own people have turned on him. His title is worthless. All he has is a battletorn war machine and a loyal crew of men.Deryn Sharp is a commoner, disguised as a boy in the British Air Service. She's a brilliant airman. But her secret is in constant danger of being discovered.With World War I brewing, Alek and Deryn's paths cross in the most unexpected way…taking them on a fantastical, around-the-world adventure that will change both their lives forever.

    Charles Babbage perfects his Analytical Engine and the computer age arrives a century ahead of its time. And three extraordinary characters race toward a rendezvous with history - and the future: Sybil Gerard - dishonored woman and daughter of a Luddite agitator; Edward "Leviathan" Mallory - explorer and paleontologist; Laurence Oliphant - diplomat 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 is the first collaborative novel by two of the most brilliant and controversial science fiction authors of our time. Provocative, compelling, intensely imagined, it is a startling extension of Gibson's and Sterling's unique visions - in a new and totally unexpected direction!

    . .1681: When Sir Isaac Newton turns his restless mind to the ancient art of alchemy, he unleashes Philosopher's Mercury, a primal source of matter and a key to manipulating the four elements of Earth, Air, Fire, and Water. Now, as France and England battle for its control, Louis XIV calls for a new weapon--a mysterious device known only as Newton's Cannon.Half a world away, a young apprentice named Benjamin Franklin stumbles across a dangerous secret. Pursued by a deadly enemy--half scientist, half sorcerer--Ben makes his fugitive way to England. Only Newton himself can help him now. But who will help Sir Isaac? For he was not the first to unleash the Philosopher's Mercury. Others were there before him. Creatures as scornful of science as they are of mankind. And burning to be rid of both . . .

    Trapped in 1877, a historian writes an account of an alternative history of America in which the South won the Civil War. Living in this alternative timeline, he was determined to change events at Gettysburg.When he's offered the chance to return to that fateful turning point his actions change history as he knows it, leaving him in an all too familiar past.

    Its captain, Lieutenant Commander Matthew Patrick Reddy, knows that he and his crew are in dire straits. In desperation, he heads Walker into a squall, hoping it will give them cover---and emerges somewhere else.Familiar landmarks appear, but the water teems with monstrous, vicious fish. And there appear to be dinosaurs grazing on the plains of Bali. Gradually Matt and his crew must accept the fact that they are in an alternate world---and they are not alone. Humans have not evolved, but two other species have. And they are at war.With its steam power and weaponry, the Walker's very existence could alter the balance of power. And for Matt and his crew, who have the means to turn a primitive war into a genocidal Armageddon, one thing becomes clear: They must decide whose side they're on. Because whoever they choose to side with is the winner.

    He's got plenty of work. In this version of America, slavery continues in four states called "the Hard Four." On the trail of a runaway known as Jackdaw, Victor arrives in Indianapolis knowing that something isn't right--with the case file, with his work, and with the country itself. As he works to infiltrate the local cell of a abolitionist movement called the Underground Airlines, tracking Jackdaw through the back rooms of churches, empty parking garages, hotels, and medical offices, Victor believes he's hot on the trail. But his strange, increasingly uncanny pursuit is complicated by a boss who won't reveal the extraordinary stakes of Jackdaw's case, as well as by a heartbreaking young woman and her child--who may be Victor's salvation. Victor believes himself to be a good man doing bad work, unwilling to give up the freedom he has worked so hard to earn. But in pursuing Jackdaw, Victor discovers secrets at the core of the country's arrangement with the Hard Four, secrets the government will preserve at any cost.Underground Airlines is a ground-breaking novel, a wickedly imaginative thriller, and a story of an America that is more like our own than we'd like to believe.

    Twelve years have passed since Churchill lost to the appeasers, and Britain surrendered to Nazi Germany after Dunkirk. As the long German war against Russia rages on in the east, the British people find themselves under dark authoritarian rule: the press, radio and television are controlled; the streets patrolled by violent auxiliary police and British Jews face ever greater constraints. There are terrible rumours too about what is happening in the basement of the German Embassy at Senate House. Defiance, though, is growing.In Britain, Winston Churchill's Resistance organisation is increasingly a thorn in the government's side. And in a Birmingham mental hospital an incarcerated scientist, Frank Muncaster, may hold a secret that could change the balance of the world struggle forever. Civil Servant David Fitzgerald, secretly acting as a spy for the Resistance, is given by them the mission to rescue his old friend Frank and get him out of the country. Before long he, together with a disparate group of Resistance activists, will find themselves fugitives in the midst of London’s Great Smog; as David’s wife Sarah finds herself drawn into a world more terrifying than she ever could have imagined. And hard on their heels is Gestapo Sturmbannfuhrer Gunther Hoth, brilliant, implacable hunter of men . . .

    Her startling and powerful works have redefined the boundaries of contemporary science fiction. Here in one volume are twelve of her greatest stories, including double award-winner "Fire Watch," set in the universe of Doomsday Book and To Say Nothing of the Dog, in which a time-traveling student learns one of history's hardest lessons. In "A Letter from the Clearys," a routine message from distant friends shatters the fragile world of a beleaguered family. In "The Sidon in the Mirror," a mutant with the unconscious urge to become other people finds himself becoming both killer and victim. Disturbing, revealing, and provocative, this remarkable collection of short fiction brings together some of the best work of an incomparable writer whose ability to amaze, confound, and enlighten never fails.Contents:Fire Watch (1982)Service for the Burial of the Dead (1982)Lost and Found (1982)All My Darling Daughters (1985)The Father of the Bride (1982)A Letter from the Clearys (1982)And Come from Miles Around (1979)The Sidon in the Mirror (1983)Daisy, in the Sun (1979)Mail-Order Clone (1982)Samaritan (1978)Blued Moon (1984)

    But Marcellinus and his troops have woefully underestimated the fighting prowess of the Native American inhabitants. When Gaius is caught behind enemy lines and spared, he must reevaluate his allegiances and find a new place in this strange land.

    The ensuing climate cataclysm will soon render the earth inhospitable for humanity, as the last such meteorite did for the dinosaurs. This looming threat calls for a radically accelerated effort to colonize space, and requires a much larger share of humanity to take part in the process.Elma York’s experience as a WASP pilot and mathematician earns her a place in the International Aerospace Coalition’s attempts to put man on the moon, as a calculator. But with so many skilled and experienced women pilots and scientists involved with the program, it doesn’t take long before Elma begins to wonder why they can’t go into space, too.Elma’s drive to become the first Lady Astronaut is so strong that even the most dearly held conventions of society may not stand a chance against her.

    The really unfortunate took years. The survivors - people like me, who had the blood group that kept us safe from the disease - were now targets for those who believed our blood could save them.I survived for three years. I lived alone, spending my days avoiding the fascist Blackshirts who wanted my blood for their dying leader. Then I met the others - and life got complicated all over again . . .

    It is based on notes handed down to Michael Moorcock from his great-grandfather. It's a story of a world of empires secured by airships, and a Chinese genius who invented the means of overthrowing the West's power!

    Overnight, the age of dinosaurs ended. The age of mammals had begun.But what if history had happened differently? What if the reptiles had survived to evolve intelligent life?In West of Eden, bestselling author Harry Harrison has created a rich, dramatic saga of a world where the descendents of the dinosaurs struggled with a clan of humans in a battle for survival.Here is the story of Kerrick, a young hunter who grows to manhood among the dinosaurs, escaping at last to rejoin his own kind. His knowledge of their strange customs makes him the humans' leader...and the dinosaurs' greatest enemy.Rivalling Frank Herbert's Dune in the majesty of its scope and conception, West of Eden is a monumental epic of love and savagery, bravery and hope.

    It's seventeen years since the Revolution overthrew the last king of the New British Empire, and the newly-reconstituted North American Commonwealth is developing rapidly, on course to defeat the French and bring democracy to a troubled world. But Miriam Burgeson, commissioner in charge of the shadowy Ministry of Intertemporal Research and Intelligence—the paratime espionage agency tasked with catalyzing the Commonwealth's great leap forward--has a problem. For years, she's warned everyone: "The Americans are coming." Now their drones arrive in the middle of a succession crisis—the leader of the American Commonwealth is dying and the vultures are circling. In another timeline, the U.S. has recruited Rita, Miriam's estranged daughter, to spy across timelines and bring down any remaining world-walkers who might threaten national security. But her handlers are keeping information from her.Two nuclear superpowers are set on a collision course. Two increasingly desperate paratime espionage agencies are fumbling around in the dark, trying to find a solution to the first contact problem that doesn't result in a nuclear holocaust. And two women—a mother and her long-lost, adopted daughter—are about to find themselves on opposite sides of the confrontation.