Ava Baldwin has always tried to keep her anger in check, just like her mom taught her. But when know-it-all classmate Owen King tries to speak over her yet again, Ava explodes . . . and Owen freezes, becoming totally unresponsive. Although Owen recovers, Ava's parents whisk her off to her mother’s alma mater, the Accademia del Forte, a mysterious international boarding school in Venice.

When eleven-year-old Hank’s mom doesn’t come home, he takes care of his toddler sister, Boo, like he always does. But it’s been a week now. They are out of food and mom has never stayed away this long… Hank knows he needs help, so he and Boo seek out the stranger listed as their emergency contact. But asking for help has consequences. It means social workers, and a new school, and having to answer questions about his mom that he's been trying to keep secret. And if they can't find his mom soon, Hank and Boo may end up in different foster homes—he could lose everything.

Summer, 1940. Nineteen-year-old Jakob Novis and his quirky younger sister Lizzie share a love of riddles and puzzles. And now they’re living inside of one. The quarrelsome siblings find themselves amidst one of the greatest secrets of World War II—Britain’s eccentric codebreaking factory at Bletchley Park. As Jakob joins Bletchley’s top minds to crack the Nazi's Enigma cipher, fourteen-year-old Lizzie embarks on a mission to solve the mysterious disappearance of their mother.

Helen and Gracie are pranking their way through middle school when a stinky stunt lands them in the front office—again. Because nothing else has curbed their chaos, the principal orders the best friends to do the unthinkable: care about something. So they join the school's Community Action Club with plans to do as little as humanly possible. But when Helen is caught unprepared by an early period and bleeds through her pants— they were gold lamé!—the girls take over the club's campaign for maxi pads in bathrooms for all students who menstruate.

Two sisters went missing on their class trip—Grace, the outgoing athlete who is friends with just about everyone, and Maddy, the wallflower wilting in her sister’s shadow who'd rather absorb herself in her journal than talk to her classmates. But when Grace is found—injured, with no memory of what happened—everybody thinks she’s lying. It’s hard not to look guilty with Maddy’s blood on her clothes. Desperate to save her sister—and prove her own innocence—Grace must piece together what happened on that school trip.