Avery Grambs has a plan for a better future: Survive high school, win a scholarship, and get out. But her fortunes change in an instant when billionaire Tobias Hawthorne dies and leaves Avery virtually his entire fortune. The catch? Avery has no idea why - or even who Tobias Hawthorne is. To receive her inheritance, Avery must move into sprawling, secret passage-filled Hawthorne House, where every room bears the old man's touch - and his love of puzzles, riddles, and codes.

Welcome to the Grandest Game, an annual competition run by billionaire Avery Grambs and the four infamous Hawthorne brothers, whose family fortune she inherited. Designed to give anyone a shot at fame and fortune, this year’s game requires one of seven golden tickets to enter. With millions on the line, those seven players will do whatever it takes to win. Some of the players are in it for the money. Some for power. Some for reasons all their own. Every single one of them has secrets.

Seventeen-year-old Cassie is a natural at reading people. Piecing together the tiniest details, she can tell you who you are and what you want. But, it's not a skill that she's ever taken seriously. That is, until the FBI come knocking: they've begun a classified program that uses exceptional teenagers to crack infamous cold cases, and they need Cassie. What Cassie doesn't realize is that there's more at risk than a few unsolved homicides—especially when she's sent to live with a group of teens whose gifts are as unusual as her own

Pay close attention, and you might solve this. On Monday afternoon five students at Bayview High walk into detention. Bronwyn, the brain, is Yale-bound and never breaks a rule. Addy, the beauty, is the picture-perfect homecoming princess. Nate, the criminal, is already on probation for dealing. Cooper, the athlete, is the all-star baseball pitcher. And Simon, the outcast, is the creator of Bayview High's notorious gossip app. Only Simon never makes it out of that classroom. Before the end of detention, Simon's dead.

When Sawyer Taft agrees to move in with her grandmother, she expects some things to be different, but what she doesn't expect is to get sucked into a group of over-privileged, yet somehow lovable debs who have kidnapped one of their own in hopes of blackmailing her into keeping their secrets under wraps - secrets that are far bigger and more scandalous than anyone could have imagined. As Sawyer works to uncover the identity of her father, she must also navigate the twisted relationships between her new friends and their powerful parents and help them discover the villain among them.

After centuries of sleep, the gods are warring again. But eighteen-year-old Iris Winnow just wants to hold her family together. Her mother is suffering from addiction and her brother is missing from the front lines. Her best bet is to win the columnist promotion at the Oath Gazette. To combat her worries, Iris writes letters to her brother and slips them beneath her wardrobe door, where they vanish—into the hands of Roman Kitt, her cold and handsome rival at the paper.

At only seventeen years old, Ross Quest is already a master thief, especially adept at escape plans. Until her plan to run away from her legendary family of thieves takes an unexpected turn, leaving her mother’s life hanging in the balance. In a desperate bid, she enters the Thieves’ Gambit, a series of dangerous, international heists where killing the competition isn’t exactly off limits, but the grand prize is a wish for anything in the world—a wish that could save her mom.

Eighteen-year-old Bel has lived her whole life in the shadow of her mom’s mysterious disappearance. Sixteen years ago, Rachel Price vanished and young Bel was the only witness, but she has no memory of it. Rachel is gone, long presumed dead, and Bel wishes everyone would just move on. But the case is dredged up from the past when the Price family agrees to a true crime documentary. Bel can’t wait for filming to end, for life to go back to normal. And then the impossible happens. Rachel Price reappears, and life will never be normal again.

Ellingham Academy is a famous private school in Vermont for the brightest thinkers, inventors, and artists. It was founded by Albert Ellingham, an early 20th century tycoon, who wanted to make a wonderful place full of riddles, twisting pathways, and gardens. "A place", he said, "where learning is a game." Shortly after the school opened, his wife and daughter were kidnapped. The only real clue was a mocking riddle listing methods of murder, signed with the frightening pseudonym "Truly, Devious".

Everyone knows the Ivies: the most coveted universities in the United States. Far more important are the Ivies. The Ivies at Claflin Academy, that is. Five girls with the same mission: to get into the Ivy League by any means necessary. I would know. I'm one of them. We disrupt class ranks, club leaderships, and academic competitions...among other things. We improve our own odds by decreasing the fortunes of others. Because hyper-elite competitive college admissions is serious business. And in some cases, it's deadly.