Book picks similar to
Hollow World by Michael J. Sullivan


science-fiction
sci-fi
time-travel
fantasy

Here and Now and Then


Mike Chen - 2019
    But his current life is a far cry from his previous career…as a time-traveling secret agent from 2142.Stranded in suburban San Francisco since the 1990s after a botched mission, Kin has kept his past hidden from everyone around him, despite the increasing blackouts and memory loss affecting his time-traveler’s brain. Until one afternoon, his “rescue” team arrives—eighteen years too late.Their mission: return Kin to 2142, where he’s only been gone weeks, not years, and where another family is waiting for him. A family he can’t remember.Torn between two lives, Kin is desperate for a way to stay connected to both. But when his best efforts threaten to destroy the agency and even history itself, his daughter’s very existence is at risk. It’ll take one final trip across time to save Miranda—even if it means breaking all the rules of time travel in the process.A uniquely emotional genre-bending debut, Here and Now and Then captures the perfect balance of heart, playfulness, and imagination, offering an intimate glimpse into the crevices of a father’s heart and its capacity to stretch across both space and time to protect the people that mean the most.

All Our Wrong Todays


Elan Mastai - 2017
    In Tom Barren's 2016, humanity thrives in a techno-utopian paradise of flying cars, moving sidewalks, and moon bases, where avocados never go bad and punk rock never existed . . . because it wasn't necessary. Except Tom just can't seem to find his place in this dazzling, idealistic world, and that's before his life gets turned upside down. Utterly blindsided by an accident of fate, Tom makes a rash decision that drastically changes not only his own life but the very fabric of the universe itself. In a time-travel mishap, Tom finds himself stranded in our 2016, what we think of as the real world. For Tom, our normal reality seems like a dystopian wasteland. But when he discovers wonderfully unexpected versions of his family, his career, and—maybe, just maybe—his soul mate, Tom has a decision to make. Does he fix the flow of history, bringing his utopian universe back into existence, or does he try to forge a new life in our messy, unpredictable reality? Tom’s search for the answer takes him across countries, continents, and timelines in a quest to figure out, finally, who he really is and what his future—our future—is supposed to be.

Timebound


Rysa Walker - 2012
    But it all becomes horrifyingly real when a murder in the past destroys the foundation of Kate’s present-day life. Suddenly, that medallion is the only thing protecting Kate from blinking out of existence.Kate learns that the 1893 killing is part of something much more sinister, and Kate’s genetic ability to time-travel makes her the only one who can stop him. Risking everything, she travels to the Chicago World’s Fair to try to prevent the killing and the chain of events that follows.Changing the timeline comes with a personal cost, however—if Kate succeeds, the boy she loves will have no memory of her existence. And regardless of her motives, does she have the right to manipulate the fate of the entire world?

Time Salvager


Wesley Chu - 2015
    In his time, Earth is a toxic, abandoned world and humans have fled into the outer solar system to survive, eking out a fragile, doomed existence among the other planets and their moons. Those responsible for delaying humanity’s demise believe time travel holds the key, and they have identified James, troubled though he is, as one of a select and expendable few ideally suited for the most dangerous job in history. James is a chronman, undertaking missions into Earth's past to recover resources and treasure without altering the timeline. The laws governing use of time travel are absolute; break any one of them and, one way or another, your life is over. Most chronmen never reach old age; the stress of each jump through time, compounded by the risk to themselves and to the future, means that many chronmen rapidly reach their breaking point, and James Griffin-Mars is nearing his.On a final mission that is to secure his retirement, James meets Elise Kim, an intriguing scientist from a previous century, who is fated to die during the destruction of an oceanic rig. Against his training and his common sense, and in violation of the chronmen’s highest law, James brings Elise back to the future with him, saving her life, but turning them both into fugitives. Remaining free means losing themselves in the wild and poisonous wastes of Earth, somehow finding allies, and perhaps discovering what hope may yet remain for humanity's home world.

Recursion


Blake Crouch - 2019
    It's why she's dedicated her life to creating a technology that will let us preserve our most precious memories. If she succeeds, anyone will be able to re-experience a first kiss, the birth of a child, the final moment with a dying parent.As Barry searches for the truth, he comes face to face with an opponent more terrifying than any disease—a force that attacks not just our minds, but the very fabric of the past. And as its effects begin to unmake the world as we know it, only he and Helena, working together, will stand a chance at defeating it.But how can they make a stand when reality itself is shifting and crumbling all around them?At once a relentless pageturner and an intricate science-fiction puzzlebox about time, identity, and memory, Recursion is a thriller as only Blake Crouch could imagine it—and his most ambitious, mind-boggling, irresistible work to date.

Extracted


R.R. Haywood - 2017
    But his good intentions turn catastrophic when an early test reveals something unexpected: the end of the world.A desperate plan is formed. Recruit three heroes, ordinary humans capable of extraordinary things, and change the future.Safa Patel is an elite police officer, on duty when Downing Street comes under terrorist attack. As armed men storm through the breach, she dispatches them all.'Mad' Harry Madden is a legend of the Second World War. Not only did he complete an impossible mission—to plant charges on a heavily defended submarine base—but he also escaped with his life.Ben Ryder is just an insurance investigator. But as a young man he witnessed a gang assaulting a woman and her child. He went to their rescue, and killed all five.Can these three heroes, extracted from their timelines at the point of death, save the world?

Project Hail Mary


Andy WeirAndy Weir - 2021
    He can't even remember his own name, let alone the nature of his assignment or how to complete it.All he knows is that he's been asleep for a very, very long time. And he's just been awakened to find himself millions of miles from home, with nothing but two corpses for company.His crewmates dead, his memories fuzzily returning, he realizes that an impossible task now confronts him. Hurtling through space on this tiny ship, it's up to him to puzzle out an impossible scientific mystery—and conquer an extinction-level threat to our species.And with the clock ticking down and the nearest human being light-years away, he's got to do it all alone.Or does he?An irresistible interstellar adventure as only Andy Weir could imagine it, Project Hail Mary is a tale of discovery, speculation, and survival to rival The Martian—while taking us to places it never dreamed of going.

Ready Player One


Ernest Cline - 2011
    The only time teenage Wade Watts really feels alive is when he's jacked into the virtual utopia known as the OASIS. Wade's devoted his life to studying the puzzles hidden within this world's digital confines, puzzles that are based on their creator's obsession with the pop culture of decades past and that promise massive power and fortune to whoever can unlock them. But when Wade stumbles upon the first clue, he finds himself beset by players willing to kill to take this ultimate prize. The race is on, and if Wade's going to survive, he'll have to win—and confront the real world he's always been so desperate to escape.

House of Suns


Alastair Reynolds - 2008
    But now, someone is eliminating the Gentian line. Campion and Purslane—two shatterlings who have fallen in love and shared forbidden experiences—must determine exactly who, or what, their enemy is, before they are wiped out of existence.

Red Rising


Pierce Brown - 2014
    "That they will be what they like. That they will own the land their father gave them.""I live for you," I say sadly.Eo kisses my cheek. "Then you must live for more."Darrow is a Red, a member of the lowest caste in the color-coded society of the future. Like his fellow Reds, he works all day, believing that he and his people are making the surface of Mars livable for future generations.Yet he spends his life willingly, knowing that his blood and sweat will one day result in a better world for his children.But Darrow and his kind have been betrayed. Soon he discovers that humanity already reached the surface generations ago. Vast cities and sprawling parks spread across the planet. Darrow—and Reds like him—are nothing more than slaves to a decadent ruling class.Inspired by a longing for justice, and driven by the memory of lost love, Darrow sacrifices everything to infiltrate the legendary Institute, a proving ground for the dominant Gold caste, where the next generation of humanity's overlords struggle for power. He will be forced to compete for his life and the very future of civilization against the best and most brutal of Society's ruling class. There, he will stop at nothing to bring down his enemies... even if it means he has to become one of them to do so.

Change Agent


Daniel Suarez - 2017
    . . .    In 2045 Kenneth Durand leads Interpol’s most effective team against genetic crime, hunting down black market labs that perform "vanity edits" on human embryos for a price. These illegal procedures augment embryos in ways that are rapidly accelerating human evolution—preying on human-trafficking victims to experiment and advance their technology.   With the worlds of genetic crime and human trafficking converging, Durand and his fellow Interpol agents discover that one figure looms behind it all: Marcus Demang Wyckes, leader of a powerful and sophisticated cartel known as the Huli jing.   But the Huli jing have identified Durand, too. After being forcibly dosed with a radical new change agent, Durand wakes from a coma weeks later to find he’s been genetically transformed into someone else—his most wanted suspect: Wyckes.   Now a fugitive, pursued through the genetic underworld by his former colleagues and the police, Durand is determined to restore his original DNA by locating the source of the mysterious—and highly valuable—change agent. But Durand hasn’t anticipated just how difficult locating his enemy will be. With the technology to genetically edit the living, Wyckes and his Huli jing could be anyone and everyone—and they have plans to undermine identity itself.

Paradox Bound


Peter Clines - 2017
    Okay, maybe a lot obsessed. But come on, how often do you meet someone who’s driving a hundred-year-old car, clad in Revolutionary-War era clothes, wielding an oddly modified flintlock rifle—someone who pauses just long enough to reveal strange things about you and your world before disappearing in a cloud of gunfire and a squeal of tires?So when the traveler finally reappears in his life, Eli is determined that this time he’s not going to let her go without getting some answers. But his determination soon leads him into a strange, dangerous world and a chase not just across the country but through a hundred years of history—with nothing less than America’s past, present, and future at stake.

Flashforward


Robert J. Sawyer - 1999
    Millions die as planes fall from the sky, people tumble down staircases, and cars plow into each other.But that’s the least of the survivors’ challenges. During the blackout, everyone experienced a glimpse of what his or her future holds—and the interlocking mosaic of these visions threatens to unravel the present.

Rewinder


Brett Battles - 2014
    But even if you did, you’d never believe it.The world as you know it wouldn't be the same without him. Denny was born into one of the lowest rungs of society, but his bleak fortunes abruptly change when the mysterious Upjohn Institute recruits him to be a Rewinder, a verifier of personal histories. The job at first sounds like it involves researching old books and records, but Denny soon learns it's far from it. A Rewinder's job is to observe history.In person.Embracing his new duties with enthusiasm, Denny witnesses things he could never even imagine before. But as exciting as the adventures into the past are, there are dangers, too. For even the smallest error can have consequences. Life-altering consequences. Time, after all, is merely a reference point.

Beacon 23


Hugh Howey - 2015
    It is a lonely job, and a thankless one for the most part. Until something goes wrong. Until a ship is in distress. In the 23rd century, this job has moved into outer space. A network of beacons allows ships to travel across the Milky Way at many times the speed of light. These beacons are built to be robust. They never break down. They never fail. At least, they aren't supposed to.