Anna Sinjari—refugee, survivor of genocide, disaffected office worker—has a close encounter that reveals universe-threatening stakes. While humanity reels from disaster, she must join a small team of civilians, soldiers, and scientists to investigate a mysterious broadcast and unknowable horror. If they can manage to face their own demons, they just might save the world.

Since long before the spaceships' fleeting presence, Blaine has been content to go along with the whims of his supermom wife and half-feral, television-addicted children. But when the kids blithely ponder skinning people to see if they're aliens, and his wife drags them all on a surprise road trip to Disney World, even steady Blaine begins to crack. Half a continent away, Heather floats in a Malibu pool and watches the massive ships hover overhead. Maybe her life is finally going to start.

From idyllic small towns to claustrophobic urban landscapes, Mallory Viridian is constantly embroiled in murder cases that only she has the insight to solve. But outside of a classic mystery novel, being surrounded by death doesn’t make you a charming amateur detective, it makes you a suspect and a social pariah. So when Mallory gets the opportunity to take refuge on a sentient space station, she thinks she has the solution. Surely the murders will stop if her only company is alien beings. At first her new existence is peacefully quiet…and markedly devoid of homicide.

On the fictional island of Patusan—and much to the ire of the Patusan natives—the Korean conglomerate LK is constructing an elevator into Earth’s orbit, gradually turning this one-time tropical resort town into a teeming travel hub: a gateway to and from our planet. Up in space, holding the elevator’s “spider cable” taut, is a mass of space junk known as the counterweight. And stashed within that junk is a trove of crucial data: a memory fragment left by LK’s former CEO, the control of which will determine the company’s—and humanity’s—future.

Sen Anon is assigned to be a witness for the Department of Transition, recording the changes in the environment as the world begins to rewild. Abandoned by her mother in a cabin somewhere in Upstate New York, Sen will observe the monumental ecological shift known as the Great Transition, the final step in Project Afterworld. Around her drones buzz, cameras watch, microphones listen, digitizing her every move. Privately she keeps a journal of her observations, which are then uploaded and saved, joining the rest of humanity on Maia, a new virtual home.