A Vortal ripped open in the heart of Manhattan. It began as a microscopic dot, invisible to the naked eye. Just hung there in midair, almost two meters above the street. People walked, drove, biked, rollerbladed, skateboarded, jogged, and one dude on his way to a Broadway audition even tap-danced by without noticing it. It grew. A day later, it was the size of a pea. A Metro bus struck it. It was still barely visible and the Sikh driver was hardly expecting to collide with a nearly invisible pea-sized obstacle suspended six feet up in the air.

Pretty much everybody made peace with it very early on in the process. It wasn’t the most pleasant prospect in this world, or any other. But it had been explained to us in the most rational and persuasive terms imaginable, in sentences so simple that even the dumbest among us were capable of getting it; and once we swallowed that pill and incorporated it into our daily lives, it really didn’t make much of a difference in the scheme of things. We were adults about it. But that doesn’t make much of a difference when your four-year-old daughter looks up at you with her big brown eyes and asks you, “Daddy? Why are the space men going to grind us into hamburgers?”

That’s how Cynthia and Ugo met. The Easter egg hunt had just started when little Cynthia noticed a dark, short-haired nine-year-old boy, all alone, sitting by the church steps. Her first impression of him was his quietness, and the way he stared at her. When she told him (well, shouted) that it was impolite to stare at strangers, and why wasn’t he running like all others?—the dark-haired boy walked quietly over and told her that they didn’t need to hurry.

“Ladies and gentlemen, everyone you know—the entire world you know—is now dead.” Murmurs ripple through the assembled cadets. Not because they’re shocked—everyone knew what they were signing up for—but because it all happened without fanfare, a jump across light-years of space unaccompanied by any grand orchestral swell or roaring engine thrusts. The wiry guy with a shaved head standing next to Tone mutters, “Jesus, I didn’t even feel anything.”

As the commuter jet descended toward the ruins of Las Vegas, Roland Zhang craned his neck at the window, watching the skeleton towers grow nearer. Billowing clouds of dust clogged the air, and wind-blown dunes partially buried the filthy, abandoned buildings. He’d viewed footage from the far corners of the Earth, every remote hellhole imaginable, but this was the first time he’d ever seen the real deal in person. He tugged at his collar, sweating in spite of the air conditioning.

The derelict hangs in Neptune’s blue orbit, a chip of shadowy flint from a distance. Up close, it’s old and rusting, myriad old systems cobbled together, and Hadley swallows her nervous and exhilarated heart a dozen times as she latches the pod to its belly, makes a hard seal at the airlock, and geckos her team inside. The exterior of their spatulae suits—hands and knees and hips—permits them freedom of movement even in zero gee. Especially in zero gee. She glances back at their pod once.

I rooted her system on the first day. It was the only way to be sure. Sure that she’d love me. Step by matching step, I walk her under the boughs of great elms in Prospect Park, while the slanting sun passes through the tangled mesh of leaves to dapple her smiling face. When her heart rate spikes, I know she’s excited. When it slows, she’s bored.