In the near future of Robert Charles Wilson's Last Year, the technology exists to open doorways into the past - but not our past, not exactly. Each "past" is effectively an alternate world, identical to ours but only up to the date on which we access it. And a given "past" can be reached only once. After a passageway is open, it's the only road to that particular past; once closed, it can't be reopened.

Cassie Klyne, 19 years old, lives in the United States in the year 2015 - but it's not our United States, and it's not our 2015. Cassies world has been at peace since the Great Armistice of 1918. There was no World War II, no Great Depression. Poverty is declining, prosperity is increasing everywhere; social instability is rare. But Cassie knows the world isn't what it seems. Her parents were part of a group who gradually discovered the awful truth: That for decades - back to the dawn of radio communications - human progress has been interfered with, made more peaceful and benign, by an extraterrestrial entity.

At first, Logan Ramsay isn’t sure if anything’s different. He just feels a little . . . sharper. Better able to concentrate. Better at multitasking. Reading a bit faster, memorizing better, needing less sleep. But before long, he can’t deny it: Something’s happening to his brain. To his body. He’s starting to see the world, and those around him—even those he loves most—in whole new ways. The truth is, Logan’s genome has been hacked. And there’s a reason he’s been targeted for this upgrade.

Dennis E. Taylor, author of the best-selling Bobiverse trilogy, explores a whole different, darker world in this sci-fi stand-alone. Determined to give his wife and children a better life back home, Ivan Pritchard ventures to the edge of known space to join the crew of the Mad Astra as an asteroid miner. He's prepared for hard work and loneliness—but not the unthinkable. After coming into contact with a mysterious alien substance, Pritchard finds an unwelcome entity sharing his mind, and a disturbing physical transformation taking place.

“Are you happy with your life?” Those are the last words Jason Dessen hears before the kidnapper knocks him unconscious. Before he awakens to find himself strapped to a gurney, surrounded by strangers in hazmat suits. Before a man he’s never met smiles down at him and says, “Welcome back, my friend.” In this world he’s woken up to, Jason’s life is not the one he knows. His wife is not his wife.

Jack Kernigan is having a bad day...a bad year...a bad life. After being booted out of MIT, he’s back in his Ohio hometown, working for the family business, facing a life of mediocrity. Then one day, out on a delivery, his truck hits...something. Something big...something furry...something invisible. And, it turns out, something not of this Earth. Fate can play funny tricks. Which is why Jack suddenly finds himself the planet’s best hope to unravel a conspiracy of galactic proportions that could spell the end of the human race.

Idris has neither aged nor slept since they remade him in the war. And one of humanity's heroes now scrapes by on a freelance salvage vessel, to avoid the attention of greater powers. After Earth was destroyed, mankind created a fighting elite to save their species, enhanced humans such as Idris. In the silence of space they could communicate, mind-to-mind, with the enemy. Then their alien aggressors, the Architects, simply disappeared - and Idris and his kind became obsolete. Now, 50 years later, Idris and his crew have discovered something strange abandoned in space.

In the 1800s, a sailing ship crashes off the coast of Norway. In the 1900s, a Zepellin explores an icy canyon in Antarctica. In the far future, a spaceship sets out for an alien artifact. Each excursion goes horribly wrong. And on every journey, Dr. Silas Coade is the physician, but only Silas seems to realize that these events keep repeating themselves. And it's up to him to figure out why and how. And how to stop it all from happening again.

At first, only a few things are known about the celestial object that astronomers dub Rama. It is huge, weighing more than ten trillion tons. And it is hurtling through the solar system at inconceivable speed. Then a space probe confirms the unthinkable: Rama is no natural object. It is, incredibly, an interstellar spacecraft. Space explorers and planet-bound scientists alike prepare for mankind's first encounter with alien intelligence.

There's a reason We Are Legion was named Audible's Best Science Fiction Book of 2016: Its irresistibly irreverent wit! Bob Johansson has just sold his software company for a small fortune and is looking forward to a life of leisure. The first item on his to-do list: Spending his newfound windfall. On an urge to splurge, he signs up to have his head cryogenically preserved in case of death. Then he gets himself killed crossing the street. Waking up 117 years later, Bob discovers his mind has been uploaded into a sentient space probe with the ability to replicate itself.

Five years ago Corin Cadence's brother entered the Serpent Spire - a colossal tower with ever-shifting rooms, traps, and monsters. Those who survive the spire's trials return home with an attunement: a mark granting the bearer magical powers. According to legend, those few who reach the top of the tower will be granted a boon by the spire's goddess. He never returned. Now it's Corin's turn. He's headed to the top floor, on a mission to meet the goddess.

A catastrophic event renders the earth a ticking time bomb. In a feverish race against the inevitable, nations around the globe band together to devise an ambitious plan to ensure the survival of humanity far beyond our atmosphere, in outer space.

A world with no hunger, no disease, no war, no misery: Humanity has conquered all those things and has even conquered death. Now Scythes are the only ones who can end life - and they are commanded to do so in order to keep the size of the population under control. Citra and Rowan are chosen to apprentice to a scythe - a role that neither wants. These teens must master the "art" of taking life, knowing that the consequence of failure could mean losing their own.

John Perry did two things on his 75th birthday. First he visited his wife's grave. Then he joined the army. The good news is that humanity finally made it into interstellar space. The bad news is that planets fit to live on are scarce—and alien races willing to fight us for them are common. So: we fight. To defend Earth, and to stake our own claim to planetary real estate. Far from Earth, the war has been going on for decades: brutal, bloody, unyielding. Earth itself is a backwater.

Colin Hancock is giving his second chance his best shot. At 28, he's focused only on walking a straight line - getting his teaching degree, working out at the gym religiously, and avoiding all the places and people that proved so destructive in his earlier life. The last thing he's looking for is a serious relationship. But when Maria Sanchez crosses paths with him on a rainswept night in North Carolina, his plans are upended in a way that will rattle the foundations of his carefully structured life.

Scott Warden is a man haunted by the past-and soon to be haunted by the future. In early 21st-century Thailand, Scott is an expatriate slacker. Then, one day, he inadvertently witnesses an impossible event: the violent appearance of a 200-foot stone pillar in the forested interior. Its arrival collapses trees for a quarter mile around its base, freezing ice out of the air and emitting a burst of ionizing radiation. It appears to be composed of an exotic form of matter.

Robert Charles Wilson, says The New York Times, "writes superior science fiction thrillers." His Darwinia won Canada's Aurora Award; his most recent novel, The Chronoliths, won the prestigious John W. Campbell Memorial Award. Now he tells a gripping tale of alien contact and human love in a mysterious but hopeful universe.

Alan Gregory is a clinical psychologist with a thriving practice in Boulder, Colorado. His life begins to unravel when one of his female patients is found in an apparent suicide and the local paper begins printing accusations from an unnamed source of sexual impropriety between the woman and Dr. Gregory. He launches a psychological and personal quest for the truth that rapidly intensifies when more of his patients die untimely deaths, and Gregory suspects not only that the deaths are related but that another one of his patients may be somehow involved. Lacking facts but roused by suspicion and troubled by seemingly random acts of terror around him, Gregory starts to fear for the safety of the people he loves. The question of the inviolability of confidential disclosures made to Gregory by his patients - privileged information - becomes crucial as the psychologist pursues an unsettling romance with Lauren Crowder, a lovely deputy district attorney investigating one of the deaths. Bound to silence, Gregory follows the psychological tracks of someone he fears may be a cunning and disturbed killer, while turning to his enigmatic but supportive partner, Diane Estevez, for counsel, and to his tart-tongued female urologist neighbor for support. The sinister, surprising drama unfolds against Boulder's Rocky Mountain backdrop, in the arresting natural beauty of Aspen, and in the midst of a baroque Halloween costume party in downtown Boulder. Finally, in a lonely mountain lodge enshrouded in menace, the story comes to its breathtaking climax.

Former NYPD detective Charlie "Bird" Parker is on the verge of madness. Tortured by the unsolved slayings of his wife and young daughter, he is a man consumed by guilt, regret, and the desire for revenge. When his former partner asks him to track down a missing girl, Parker finds himself drawn into a world beyond his imagining - one where 30 year old killings remain shrouded in fear and lies, a world where the ghosts of the dead torment the living....

Twelve-year old Sheldon Horowitz is still recovering from the tragic loss of his mother only a year ago when a suspicious traffic accident steals the life of his father near their home in rural Massachusetts. It is 1938, and Sheldon, who was in the truck, emerges from the crash an orphan hell-bent on revenge. He takes that fire with him to Hartford, where he embarks on a new life under the roof of his buttoned-up Uncle Nate.

For 15 years Maria Devane has been desperately, passionately in love with Dante Romano. But every month, Dante shifts shape, becoming a wild animal. During those times, he wanders far and wide, leaving Maria alone. Since the beginning, she has kept his secret, knowing that their love is worth the danger. But when a string of brutal attacks occur in local parks during the times when Dante is in animal form, Maria is forced to consider whether the lies she's been telling about her life have turned into lies she's telling herself.

Louis Holland arrives in Boston in a spring of ecological upheaval (a rash of earthquakes on the North Shore) and odd luck: the first one kills his grandmother. Louis tries to maintain his independence, but falls in love with a Harvard seismologist whose discoveries about the earthquakes' cause complicate everything.

Meet smart-aleck Southampton attorney Jackie Swaitkowski. Her business relies on constant movement of Hamptons' real estate market. After making an odd request to evict his sister-in-law from his home, one of her clients turns up dead. Jackie would have expected that to be the end of it, but an envelope found on the corpse contains an item so unusual that she finds herself working on something bigger, and more dangerous, than real estate.

Someone is knocking at the door to Grace Adams' house, and he won't stop. Grace thinks she knows who it is, but when she goes to her second floor window for a look she sees a woman she doesn't recognize. The woman isn't alone for long before a man emerges from the dark of the surrounding woods, stabs her, and leaves her for dead. Trying to help, Grace goes to the woman and is shocked to find that it's her mother Leanne - a woman who abandoned her 11 years before.

Architect Kayla Carter and her husband designed a beautiful house for themselves in Round Hill’s new development, Shadow Ridge Estates. It was supposed to be a home where they could raise their three-year-old daughter and grow old together. Instead, it’s the place where Kayla’s husband died in an accident - a fact known to a mysterious woman who warns Kayla against moving in. The woods and lake behind the property are reputed to be haunted, and the new home has been targeted by vandals leaving threatening notes.

Private Investigator Smokey Dalton works for Memphis, Tennessee’s black community. He has almost no interaction with the white hierarchy, even though they exist only blocks away. So he’s surprised the day a white woman walks into his Beale Street office. Laura Hathaway has sought him out because he’s a beneficiary in her mother’s will, and Laura wants to know why. So does Smokey. He’s never heard of the Hathaways, but his search will take him on a journey that will change everything he’s ever known.

Nightwatcher, the first in a riveting new series, takes place in the days immediately following the 9/11 terrorist attacks. A serial killer is loose in New York City, and Allison Taylor may be the only one who can identify him. She doesn’t know the killer has now set his sights on her—and unless she acts fast, she’ll be his next victim.

Set against the rise and fall of the radical antiwar group the Weather Underground, The Company You Keep is a sweeping American saga about sacrifice, the ecstatic righteousness of youth, and the tension between political ideals and family loyalties. When Jason Sinai, one of the last Vietnam-era fugitives still wanted on murder charges for a robbery gone wrong in 1974, encounters a young newspaper reporter in search of a story, he must abandon years of safe underground life for the dangerous life of the road.

Nobody knows what happened to Sarah Cook. The beautiful blonde teenager disappeared 15 years ago, the same night her parents were brutally murdered in their suburban Ohio home. Her boyfriend, Brad Stockton - black and from the wrong side of the tracks - was convicted of the murders and is now on death row. Though he's maintained his innocence all along, the clock is running out. His execution is only weeks away when his devoted sister insists she spied Sarah at an area gas station.

Lurking in the dark corners of J. P. Beaumont's bizarre case was not just a demented mind obsessed with murder, but secrets so deadly that even a street-tough cop could die guessing.