He knew where he was--Rome. He was there to study archaeology, and even though the lightning had left him dazed, he could see the familiar Roman buildings. But the buildings looked newer and the crowds in the street were wearing tunics, not suits! And a rich barnyard smell had replaced the gasoline-and-garlic aroma of modern Rome. So, when was he? And he was suddenly cold with fear of the answer...

    For fifteen years, subterranean humanity has been fed on daily broadcasts of a never-ending nuclear destruction, sustained by a belief in the all powerful Protector. But up on Earth's surface, a different kind of reality reigns. East and West are at peace. Across the planet, an elite corps of expert hoaxers preserve the lie.Cover Illustration: Chris Moore

    But which one broke the timeline?In 2136 Madison Grace uncovers a key to the origins of CHRONOS, a time-travel agency with ties to her family’s mysterious past. Just as she is starting to jump through history, she returns to her timeline to find millions of lives erased—and only the people inside her house realize anything has changed.In 2304 CHRONOS historian Tyson Reyes is assigned to observe the crucial events that played out in America’s civil rights movement. But a massive time shift occurs while he’s in 1965, and suddenly the history he sees isn’t the history he knows.As Madi’s and Tyson’s journeys collide, they must prevent the past from being erased forever. But strange forces are at work. Are Madi and Tyson in control or merely pawns in someone else’s game?

    In this nightmare society, air pollution is so bad that gas masks are commonplace. Infant mortality is up, and everyone seems to suffer from some form of ailment.

    . . . The impossible has spawned the unthinkable. A military experiment in the year 2021 has thrust an American-led multinational armada back to 1942, right into the middle of the U.S. naval task force speeding toward Midway Atoll—and what was to be the most spectacular U.S. triumph of the entire war. Thousands died in the chaos, but the ripples had only begun. For these veterans of Pearl Harbor—led by Admirals Nimitz, Halsey, and Spruance—have never seen a helicopter, or a satellite link, or a nuclear weapon. And they’ve never encountered an African American colonel or a British naval commander who was a woman and half-Pakistani. While they embrace the armada’s awesome firepower, they may find the twenty-first century sailors themselves far from acceptable.Initial jubilation at news the Allies would win the war is quickly doused by the chilling realization that the time travelers themselves—by their very presence—have rendered history null and void. Celebration turns to dread when the possibility arises that other elements of the twenty-first century task force may have also made the trip—and might now be aiding Yamamoto and the Japanese.What happens next is anybody’s guess—and everybody’s nightmare. . . .From the Trade Paperback edition.

    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.

    To some, the Miracle is an act of divine retribution; to others, it is an opportunity to carve out a new empire.Leaving an America now ruled by religious fundamentalism, young Guilford Law travels to Darwinia on a mission of discovery that will take him further than he can possibly imagine...to a shattering revelation about mankind's destiny in the universe. Darwinia is a 1999 Hugo Award Nominee for Best Novel.

    Stephen the Third, the king of England, has just died, and Mass (Mozart’s second requiem) is about to be sung to lay him to rest. In the choir is our hero, Hubert Anvil, an extremely ordinary ten-year-old boy with a faultless voice. In the audience is a select group of experts whose job is to determine whether that faultless voice should be preserved by performing a certain operation. Art, after all, is worth any sacrifice.How Hubert realizes what lies in store for him and how he deals with the whirlpool of piety, menace, terror, and passion that he soon finds himself in are the subject of a classic piece of counterfactual fiction equal to Philip K. Dick’s The Man in the High Castle.The Alteration won the John W. Campbell Memorial Award for best science-fiction novel in 1976.

    But idle sometime-musician George has little talent for clockwork. And when a shadowy figure tries to steal an old device from the premises, George finds himself embroiled in a mystery of time travel, music and sexual intrigue. A genuine lost classic, a steampunk original whose time has come.

    That single tragedy set off a whole series of events, resulting in the Spanish Armada's defeat of England and subsequent demise of Protestantism. Now it's the 20th century, and the Church of Rome reigns supreme. People live a pastoral existence of guilds and farming, with technology held back to the level of the steam locomotive and primitive radio. Still, science cannot be held back forever...a revolution is building.

    The two men are sucked into the perilous depths of this moral and ethical vacuum when Lord Palmerston commissions Burton to investigate assaults on young women committed by a weird apparition known as Spring Heeled Jack, and to find out why werewolves are terrorizing London's East End.Their investigations lead them to one of the defining events of the age, and the terrifying possibility that the world they inhabit shouldn't exist at all!

    But while attending a lecture given by Samuel Taylor Coleridge in 1810, he becomes marooned in Regency London, where dark and dangerous forces know about the gates in time.Caught up in the intrigue between rival bands of beggars, pursued by Egyptian sorcerers, and befriended by Coleridge, Doyle somehow survives and learns more about the mysterious Ashbless than he could ever have imagined possible...

    And it isn’t even the strangest thing to happen to him that week.Nick and his Dungeons & Dragons-playing friends are used to living in their imaginations. But when a new girl, Mia, joins the group and reality becomes weirder than the fantasy world they visit in their weekly games, none of them are prepared for what comes next. A strange—yet curiously familiar—man is following Nick, with abilities that just shouldn’t exist. And this man bears a cryptic message: Mia’s in grave danger, though she doesn’t know it yet. She needs Nick’s help—now.He finds himself in a race against time to unravel an impossible mystery and save the girl. And all that stands in his way is a probably terminal disease, a knife-wielding maniac and the laws of physics.Challenge accepted.

    IRGB is a nation living in the aftermath of a bizarre and terrifying terrorist atrocity - hundreds of thousands were wiped out when a vast triangle of west London was instantly annihilated. The authorities think the terrorist attack and the death of Tarent's wife are somehow connected. A century earlier, a stage magician is sent to the Western Front on a secret mission to render British reconnaissance aircraft invisible to the enemy. On his journey to the trenches he meets the visionary who believes that this will be the war to end all wars. In 1943, a woman pilot from Poland tells a young RAF technician of her escape from the Nazis, and her desperate need to return home. In the present day, a theoretical physicist stands in his English garden and creates the first adjacency. THE ADJACENT is a novel where nothing is quite as it seems. Where fiction and history intersect, where every version of reality is suspect, where truth and falsehood lie closely adjacent to one another. It shows why Christopher Priest is one of our greatest writers.

    Save the present. Stop the future. Alastair Reynolds unfolds a time-traveling climate fiction adventure in Permafrost.2080: at a remote site on the edge of the Arctic Circle, a group of scientists, engineers and physicians gather to gamble humanity’s future on one last-ditch experiment. Their goal: to make a tiny alteration to the past, averting a global catastrophe while at the same time leaving recorded history intact. To make the experiment work, they just need one last recruit: an ageing schoolteacher whose late mother was the foremost expert on the mathematics of paradox.2028: a young woman goes into surgery for routine brain surgery. In the days following her operation, she begins to hear another voice in her head... an unwanted presence which seems to have a will, and a purpose, all of its own – one that will disrupt her life entirely. The only choice left to her is a simple one.Does she resist... or become a collaborator?