When ten-year-old Lina Gao steps off the plane in Los Angeles, it’s her first time in America and the first time seeing her parents and her little sister in five years! She’s been waiting for this moment every day while she lived with her grandmother in Beijing, getting teased by kids at school who called her “left behind girl.” Finally, her parents are ready for her to join their fabulous life in America! Except, it’s not exactly like in the postcards.

When the coronavirus hits Hong Kong, ten-year-old Knox Wei-Evans’s mom makes the last-minute decision to move him and his siblings back to California, where they think they will be safe. Suddenly, Knox has two days to prepare for an international move—and for leaving his dad, who has to stay for work. At his new school in California, Knox struggles with being the new kid. His classmates think that he must have brought over the virus. At home, Mom just got fired, and Dad doesn’t even know when he’ll see them again, since the flights have been cancelled.

Thirteen-year-old Matthew is miserable. His journalist dad is stuck overseas indefinitely, and his mom has moved in his one-hundred-year-old great-grandmother to ride out the pandemic, adding to his stress and isolation. But when Matthew finds a tattered black-and-white photo in his great-grandmother’s belongings, he discovers a clue to a hidden chapter of her past, one that will lead to a life-shattering family secret.

Becca Singer is having the Worst Day Ever. Her best friend, Harper, dumped her, and Becca is totally friendless and alone. Then the box arrives in the mail. Inside the box? One bracelet, plus a mysterious note telling Becca to make a wish. So Becca puts on the bracelet—why not, right?—and wishes to have friends. Lots of friends. So many friends. And just like that, the magic works. Suddenly, EVERYONE wants to be Becca's BFF, from all the kids at school to the teachers (!) to her own mom (!!).

December 6, 1941: Best friends Frank and Stanley have it good. Their dads are Navy pilots stationed at Pearl Harbor in Hawaii, and the boys get a front-row view of the huge battleships and the sparkling water. Yes, World War II is raging in Europe and in Asia, but the US isn't involved in the war, and the boys are free to dream about becoming comic book creators. They've even invented a superhero of their own, in the style of Batman, Superman, Captain America, and other stars of the Golden Age of Comics. December 7th, 1941: Everything explodes.

Maizy has never been to Last Chance, Minnesota . . . until now. Her mom’s plan is just to stay for a couple weeks, until her grandfather gets better. But plans change, and as Maizy spends more time in Last Chance and at the Golden Palace—the restaurant that’s been in her family for generations—she makes some discoveries. But the more Maizy discovers, the more questions she has.

Zoe Washington isn’t sure what to write. What does a girl say to the father she’s never met, hadn’t heard from until his letter arrived on her 12th birthday, and who’s been in prison for a terrible crime? A crime he says he never committed. Could Marcus really be innocent? Zoe is determined to uncover the truth. Even if it means hiding his letters and her investigation from the rest of her family. Everyone else thinks Zoe’s worrying about doing a good job at her bakery internship

Bex and Davey's summer in the saltmarsh is different this year, thanks to the record-breaking drought. Even the fish seem listless - and each day the water level lowers farther. When they discover a mysterious underwater statue, they're thrilled at the chance to solve the puzzle of its origin. This is the summer adventure they've been waiting for. When they learn of a development plan that will destroy their special spot, they'll need to act quickly. Unfortunately, sometimes progress happens whether you're ready or not.

Melody is not like most people. She cannot walk or talk, but she has a photographic memory; she can remember every detail of everything she has ever experienced. She is smarter than most of the adults who try to diagnose her and smarter than her classmates in her integrated classroom - the very same classmates who dismiss her as mentally challenged because she cannot tell them otherwise. But Melody refuses to be defined by cerebral palsy.

It’s the summer before fifth grade, and for Ferris Wilkey, it is a summer of sheer pandemonium: Her little sister, Pinky, has vowed to become an outlaw. Uncle Ted has left Aunt Shirley and, to Ferris’s mother’s chagrin, is holed up in the Wilkey basement to paint a history of the world. And Charisse, Ferris’s grandmother, has started seeing a ghost at the threshold of her room, which seems like an alarming omen given that she is also feeling unwell. But the ghost is not there to usher Charisse to the Great Beyond. Rather, she has other plans—wild, impractical, illuminating plans.

Olive Cobin Zang has . . . issues. And they mostly aren’t her fault. (No, really!) Though she often slips under the radar, problems have a knack for finding her. So, imagine her doubts when she’s suddenly dropped off at the strangest boarding school ever: a former castle turned prison that's now a “reforming arts school”!

Trey knows how the trick works: His dad gets him into a school full of kids with rich parents. Trey makes friends, and his dad makes connections. Soon, there’s the con, where Trey’s dad suckers the other parents into giving him money for one of his schemes. Once the money’s in the bank, Trey, his sister, and their dad go on the run … until they set up somewhere else and start again.

When Kristy Thomas has the great idea to form a baby-sitters club - a chance to earn money and spend time with her friends, all while doing something they each love to do - she has no idea how much the club will change everything. Crank calls, uncontrollable toddlers, wild pets, untruthful clients...running a business is hard work! Kristy and her co-founders, Mary Anne, Claudia, and Stacey, are sure they can handle anything. But only if they stick together....

Nobody said starting fifth grade would be easy, and Penny Lowry's anxiety means a million questions are always spinning through her thoughts. Luckily she's got a lot to look forward to, like her favorite after-school activity, Art Club, and seeing her best friend Violet again after spending the whole summer apart. The thing is, Violet has been acting weird ever since she got back. She never wants to hang out anymore, says Art Club is for babies, and spends all her time with Riley, the meanest girl in school. Did Penny do something wrong? And if she did, can she undo it?

Molly Frost is fed up.... Because Olivia was yelled at for wearing a tank top. Because Liza got dress coded and Molly didn't, even though they were wearing the exact same outfit. Because when Jessica was pulled over by the principal and missed a math quiz, her teacher gave her an F. Because it's impossible to find shorts that are longer than her fingertips. Because girls' bodies are not a distraction. Because middle school is hard enough.