There used to be an empty chair at the back of Mrs. Khan's classroom, but on the third Tuesday of the school year a new kid fills it: nine-year-old Ahmet, a Syrian refugee. The whole class is curious about this new boy - he doesn't seem to smile, and he doesn't talk much. But after learning that Ahmet fled a very real war and was separated from his family along the way, a determined group of his classmates bands together to concoct the greatest idea in the world - a magnificent plan to reunite Ahmet with his loved ones.

One year after a random shooting changed their family forever, Nora and her father are exploring a slot canyon deep in the Arizona desert, hoping it will help them find peace. Nora longs for things to go back to normal, like they were when her mother was still alive, while her father keeps them isolated in fear of other people. But when they reach the bottom of the canyon, the unthinkable happens: A flash flood rips across their path, sweeping away Nora's father and all of their supplies.

Ever since Ellie wore a whale swimsuit and made a big splash at her fifth-birthday party, she's been bullied about her weight. To cope, she tries to live by the Fat Girl Rules - like "no making waves", "avoid eating in public", and "don't move so fast that your body jiggles". And she's found her safe space - her swimming pool - where she feels weightless in a fat-obsessed world. In the water, she can stretch herself out like a starfish and take up all the room she wants. It's also where she can get away from her mom, who thinks criticizing Ellie's weight will motivate her to diet.

San Francisco and Orangevale may be in the same state, but for Héctor Muñoz, they might as well be a million miles apart. Back home, being gay didn’t mean feeling different. At Héctor’s new school, he couldn’t feel more alone.

Twelve-year-old Ana wants nothing more than to escape the future set for her and her classmates in her small mining village. Boys her age are beginning to leave school to become silver miners and girls her age are destined to one day be the wives of miners. But when her often ill 11-year-old brother is forced by their demanding father to start work in the mines, Ana gives up her dreams of school to volunteer in his place. The world of silver mining though is dark and dangerous and the men who work there don't want a girl in their way.

Ever since Stella was a puppy, she was trained to use her powerful beagle nose to sniff out chemicals used in explosives and warn her human handler in order to keep people safe. But during a routine security inspection, Stella is distracted and misses the scent of an explosive chemical. The sound of the blast is loud and scary. Stella survives, but her handler is gone. Stella blames herself, certain she’s a bad dog. Scared of loud noises, especially thunder and fireworks, Stella struggles with her anxiety and must be retired from being a service animal.

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.

Clea can’t control her thoughts. She knows she has to do her homework...but she gets distracted. She knows she can’t just say whatever thought comes into her head...but sometimes she can’t help herself. She know she needs to focus...but how can she do that when the people around her are always chewing gum loudly or making other annoying noises? It’s starting to be a problem - not just in school, but when Clea’s playing chess or just hanging out with her best friend.

Ally has been smart enough to fool a lot of smart people. Every time she lands in a new school, she is able to hide her inability to read by creating clever yet disruptive distractions. She is afraid to ask for help; after all, how can you cure dumb? However, her newest teacher Mr. Daniels sees the bright, creative kid underneath the trouble maker. With his help, Ally learns not to be so hard on herself and that dyslexia is nothing to be ashamed of.

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.

From fixing the class computer to repairing old radios, 12-year-old Iris is a tech genius. But she's the only deaf person in her school, so people often treat her like she's not very smart. If you've ever felt like no one was listening to you, then you know how hard that can be. When she learns about Blue 55, a real whale who is unable to speak to other whales, Iris understands how he must feel. Then she has an idea: She should invent a way to "sing" to him! But he's 3,000 miles away. How will she play her song for him?

Eleven-year-old Kemi Carter loves scientific facts, specifically probability. It's how she understands the world and her place in it. Kemi knows her odds of being born were 1 in 5.5 trillion, and that the odds of her having the best family ever were even lower. Yet somehow, Kemi lucked out. But everything Kemi thought she knew changes when she sees an asteroid hover in the sky, casting a purple haze over her world. Amplus-68 has an 84.7% chance of colliding with earth in four days, and with that collision, Kemi’s life as she knows it will end.

At night, in Huda's fragrant garden, a breeze sweeps in from the desert encircling Baghdad, rustling the leaves of her apricot trees and carrying warning of visitors at her gate. Huda, a secretary at the Australian embassy, lives in fear of the Mukhabarat - the secret police who watch and listen for any scrap of information that can be used against America and its allies. They have ordered her to befriend Ally Wilson, the deputy ambassador's wife. Huda has no wish to be an informant, but fears for her teenage son, who may be forced to join a deadly militia.

Starting at a new school is scary, especially with a giant hearing aid strapped to your chest! At her old school, everyone in Cece’s class was deaf. Here, she’s different. She’s sure the kids are staring at the Phonic Ear, the powerful aid that will help her hear her teacher. Too bad it also seems certain to repel potential friends.

Ana Dakkar is a freshman at Harding-Pencroft Academy, a five-year high school that graduates the best marine scientists, naval warriors, navigators, and underwater explorers in the world. Ana's parents died while on a scientific expedition two years ago, and the only family's she's got left is her older brother, Dev, also a student at HP. Ana's freshman year culminates with the class' weekend trial at sea, the details of which have been kept secret. She only hopes she has what it'll take to succeed.

As befits a future President of the United States of America, Maggie Mayfield has decided to write a memoir of the past year of her life. And what a banner year it's been! During this period she's Student of the Month on a regular basis, an official shareholder of Coca-Cola stock, and defending Science Fair champion. Most importantly, though, this is the year Maggie has to pull up her bootstraps (the family motto) and finally learn why her cool-dude dad is in a wheelchair, no matter how scary that is.

Until sophomore year of high school, 15-year-old Allison Britz lived a comfortable life in an idyllic town. She was a dedicated student with tons of extracurricular activities, friends, and loving parents at home. But after awakening from a vivid nightmare in which she was diagnosed with brain cancer, she was convinced the dream had been a warning. Allison believed that she must do something to stop the cancer in her dream from becoming a reality.

Growing up in an affluent suburb of New York City, 16-year-old Nevaeh Levitz never thought much about her biracial roots. When her Black mom and Jewish dad split up, she relocates to her mom's family home in Harlem and is forced to confront her identity for the first time. Nevaeh wants to get to know her extended family, but because she inadvertently passes as white, her cousin thinks she's too privileged, pampered, and selfish to relate to the injustices African Americans face on a daily basis.

Winnie Perry went through a lot when she was 11, from shifting friendships to her teenage sister's mood swings. But now that Winnie is 12, and one step closer to being a teenager herself, there is so much more to deal with. Will her new friendship with Dinah last? Can she handle the pressures of junior high? And, most important, will Winnie survive bra shopping (in public!) with Mom?

Matt Wainwright is constantly sabotaged by the overdramatic movie director in his head. He can't tell his best friend, Tabby, how he really feels about her; he implodes on the JV basketball team; and the only place he feels normal is in Mr. Ellis' English class, discussing the greatest fart scenes in literature and writing poems about pissed-off candy-cane lumberjacks. After a tragic accident, Matt finds himself left on the sidelines, on the verge of spiraling out of control and losing everything that matters to him.

Albie has never been the smartest kid in his class. He has never been the tallest. Or the best at gym. Or the greatest artist. Or the most musical. In fact, Albie has a long list of the things he's not very good at. And his parents keep reminding him of those things all the time...even when it's just by accident. But then Albie gets a new babysitter, Calista, who helps him figure out all of the things he is good at and how he can take pride in himself.

Sixteen-year-old physics nerd Aysel is obsessed with plotting her own death. With a mother who can barely look at her without wincing, classmates who whisper behind her back, and a father whose violent crime rocked her small town, Aysel is ready to turn her potential energy into nothingness.

Abby Carnelia is an average sixth grader. She gets along okay with her parents, does pretty well in school, and has an annoying little brother. There’s absolutely nothing remarkable about her at all — that is, until the day when she happens to tug on her earlobes while standing in front of a hard-boiled egg. That’s the day Abby discovers there’s something very, very special about her after all: she has a magical power, and there are some people who will do anything to find out where it came from.

Eighteen-year-old Eliza Mirk is the anonymous creator of the wildly popular webcomic Monstrous Sea, but when a new boy at school tempts her to live a life offline, everything she’s worked for begins to crumble. In the real world, Eliza Mirk is shy, weird, and friendless. Online, Eliza is LadyConstellation, anonymous creator of a popular webcomic called Monstrous Sea. With millions of followers and fans throughout the world, Eliza’s persona is popular. Eliza can’t imagine enjoying the real world as much as she loves her digital community.

Fifteen-year-old Spencer Harris is a proud nerd, an awesome big brother, and a David Beckham in training. He's also transgender. After transitioning at his old school leads to a year of isolation and bullying, Spencer gets a fresh start at Oakley, the most liberal private school in Ohio. At Oakley, Spencer seems to have it all: more accepting classmates, a decent shot at a starting position on the boys' soccer team, great new friends, and maybe even something more than friendship with one of his teammates.

All Nestor Lopez wants is to live in one place for more than a few months and have dinner with his dad. When he and his mother move to a new town to live with his grandmother after his dad’s latest deployment, Nestor plans to lay low. He definitely doesn’t want anyone to find out his deepest secret: that he can talk to animals. But when the animals in his new town start disappearing, Nestor's grandmother becomes the prime suspect.

It starts before you can even remember: You learn the rules for being a girl.... Marin has always been good at navigating these unspoken guidelines. A star student and editor of the school paper, she dreams of getting into Brown University. Marin’s future seems bright - and her young, charismatic English teacher, Mr. Beckett, is always quick to admire her writing and talk books with her. But when “Bex” takes things too far and comes on to Marin, she’s shocked and horrified. Had she somehow led him on? Was it her fault?

Amanda is reliving her 11th birthday over and over again - even the fight with her best friend, Leo. How can she fix everything and put the day behind her? Only time, friendship, and luck will tell.

The first day of middle school means trading in freeze tag at the pool for new schedules, fabulous outfits, and a fresh start. But for 11-year-old Kaylan, the chaos of new locker combinations, cafeteria cliques, and potential first kisses is more than she can handle. She dreads the start of sixth grade and feels like she wants - no, needs - a winning game plan. Luckily, Kaylan and her effortlessly chill BFF, Arianna, have a fool-proof plan for tackling transitions: a list of 11 things they need to do to totally transform themselves before they both turn 12 in November.

Landon Dorch longs to play football, and he is definitely built for the game. Unfortunately two things stand in his way: his mother's worries and the fact that he is deaf. Landon hopes that the family's move to a new town will offer him a fresh start and that he can leave behind the teasing and taunts that marred life at his former school. But his speech problems and his cochlear implants seem to invite bullying. Luckily he is not without help, starting with his loving and quirky family and then a great new friend on the team.