Four girls. Four girls skating home, both sides of the road, fearless. Four girls at the mouth of an infinite ocean, sugared and salted with sand and seawater, the tide licking their sunburned feet. This summer, they’re going to disappear.

Whitney knows what death looks like. Since she was seven, she’s seen it hover over strangers’ heads in dark, rippling clouds. Sometimes she can save people from the darkness. Sometimes she can’t. But she’s never questioned if she should try. Until the unthinkable happens—and a person she saves becomes the perpetrator of a horrific school shooting.

Wilhelmina Hart is part of the infamous class of 2020. Her high school years began with a shocking presidential election and ended with a pandemic. In the midst of this global turmoil, she also lost one of her beloved aunts, a loss she still feels keenly. Having deferred college, Wilhelmina now lives in a limbo she can see no way out of, like so many of her peers.

After ten years of exile, following regicide in the House of Tristain, an alarming royal edict is delivered to the immortal scarecrow Guardians who once defended the crown: surrender themselves to the church of the Silent Gods, or stand accused of further treason. But with a puppet prince set to take the throne and vengeful wraiths appearing with alarming frequency, something foul and sinister is at work in the kingdom of Niveaux.

Eighteen-year-old ghost hunter Cara is determined to escape life as a high school outcast by finding proof of the supernatural. Yet when she stumbles upon the spirit of Aiden, a popular upperclassman who died the previous year, she learns that ghosts have goals of their own. In the wake of his death, Aiden’s little sister, Meredith, has become a depressed recluse, and Aiden can’t pass on into the afterlife until he knows she’ll be okay. Believing that nothing pulls someone out of a slump like romance, he makes Cara a deal.

Andie has a plan. And she always sticks to her plan. Future? A top-tier medical school. Dad? Avoid him as much as possible (which isn't that hard considering he's a congressman and he's never around). Friends? Palmer, Bri, and Toby - pretty much the most awesome people on the planet. Who needs anyone else? Relationships? No one's worth more than three weeks. So it's no surprise that Andie's got her summer all planned out, too.

When Stella North is chosen to represent Britain in Europe’s first air race for young people, she knows all too well how high the stakes are. As the only participating female pilot, it’ll be a constant challenge to prove she’s a worthy competitor. But promoting peace in Europe, the goal of the race, feels empty to Stella when civil war is raging in Spain and the Nazis are gaining power—and when, right from the start, someone resorts to cutthroat sabotage to get ahead of the competition.

There’s something in the lake at Wren Hall. At least, that’s what the locals say. Not that Meg cares much about the rumors. When she’s asked to spend Halloween weekend at the Ireland retreat of the wealthy Wren twins, she recognizes the invitation for exactly what it is: her last, and only, chance to save her spot at Greyscott’s, the exclusive British art school she attended on scholarship until last summer. Clever, beautiful, and talented, the twins are the pride of Greyscott’s, and kindhearted Lottie Wren was once Meg’s closest friend. But not anymore.

Faolan Kelly’s grandfather is dead. She’s alone in the world and suddenly homeless, all because the local powers that be don’t think a young man of seventeen is mature enough to take over his grandfather’s homestead…and that’s with them thinking Faolan is a young man. If she revealed that her grandfather had been disguising her for years, they would marry her off at the first opportunity. The mayor finds a solution that serves everyone but Faolan: He hires a gunslinger to ship her off to the Settlement, a remote fort where outcasts live under the leadership of His Benevolence Gideon Dillard.

Lavinia “Vin” Lucas is out of control and out of options. Stranded by parents who would rather use their average magical abilities to study dung beetles than raise her, Vin's been on her own for years. But she’s never been able to corral her own powerful, unpredictable magic. After years of detention, suspension, and expulsion from magic schools far and wide, she’s now being sent to the Last Hope School for Magical Delinquents. If she gets expelled, it’s the end of the line. Now, Vin is determined to behave. Except no one at Last Hope seems to want her to.

In 2364, eighteen-year-old Liv Newman dreams of a future beyond her lower-class life in the Metro. As a Proxy, she uses the neurochip in her brain to sell memories to wealthy clients. Maybe a few illegally, but money equals freedom. So when a customer offers her a ludicrous sum to go on an assignment in no-man’s-land, Liv accepts. Now she just has to survive.

One minute, Rachel is taking a break from babysitting. The next, she's escaping the Earth on a pedal-powered interplanetary bus. It could happen to anybody. It could. Generally it doesn't, but it could. Because what Rachel soon learns is that Earth is infected with Math, which is why we look at our solar system and see freezing balls of ice, gas, and rock whirling lifelessly through a hostile void. Everyone else sees air pirates sailing the Seven Skies of Saturn, the endless exciting fight scenes of Mars, the sullen ghosts of Pluto, and much more.

As the contentious 2017 presidential election looms and protests rage across every corner of the city, life in Tegucigalpa, Honduras, churns louder and faster. For her part, high school senior Libertad (Libi) Morazán takes heart in writing political poetry for her anonymous Instagram account and a budding romance with someone new. But things come to a head when Mami sees texts on her phone mentioning a kiss with a girl and Libi discovers her beloved older brother, Maynor, playing a major role in the protests.

Lila Rose Li arrives at her aunt’s cottage with dashed dreams. For years, she pushed herself to become the perfect ballerina her parents would approve of, but after collapsing on stage, she snapped and lashed out violently. Now, exiled to Luna Island, with its sparkling blue waters and rose-covered boutiques, Lila struggles to believe that a girl like her—a natural disaster—deserves good and gentle things. As the islanders gear up for their beloved tradition, the Angel of the Sea pageant, Lila vows to remain on the sidelines.

The Fall siblings live in hot Northern California wine country, where the sun pours out of the sky, and the devil winds blow so hard they whip the sense right out of your head. Years ago, the Fall kids’ father mysteriously disappeared, cracking the family into pieces.