It's 1947, and India, newly independent of British rule, has been separated into two countries: Pakistan and India. The divide has created much tension between Hindus and Muslims, and hundreds of thousands are killed crossing borders. Half-Muslim, half-Hindu twelve-year-old Nisha doesn't know where she belongs or what her country is anymore. When Papa decides it's too dangerous to stay in what is now Pakistan, Nisha and her family become refugees and embark first by train but later on foot to reach her new home.

Max Bretzfeld doesn’t want to move to London. Leaving home is hard and Max is alone for the first time in his life. But not for long. Max is surprised to discover that he’s been joined by two unexpected traveling companions, one on each shoulder, a kobold and a dybbuk named Berg and Stein. Germany is becoming more and more dangerous for Jewish families, but Max is determined to find a way back home, and back to his parents. He has a plan to return to Berlin. It merely involves accomplishing the impossible: becoming a British spy.

Simon O'Keeffe's biggest claim to fame should be the time his dad accidentally gave a squirrel a holy sacrament. Or maybe the alpaca disaster that went viral on YouTube. But the story the whole world wants to tell about Simon is the one he'd do anything to forget: the story in which he's the only kid in his class who survived a school shooting. Two years after the infamous event, twelve-year-old Simon and his family move to the National Quiet Zone—the only place in America where the internet is banned.

Isaiah "Ice" Abernathy has always worshiped his older brother, Seth. For years they’ve been not just brothers but best friends—and as Seth starts his senior year, Ice is eager to spend as much time with his brother as he can, making memories before Seth goes to college. But when Seth announces he’s leaving much earlier than expected, and then he misses an important event—one he'd promised to attend—it causes a major fight.

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.

Nothing about Kess Pedrock’s life is normal. Not her home (she lives in her family’s Unnatural History Museum), not her interests (hunting for megafauna fossils and skeletons), and not her best friend (a talking demon’s head in a jar named Shrunken Jim).

Deena’s never given a name to the familiar knot in her stomach that appears when her parents argue about money, when it’s time to go to school, or when she struggles to find the right words. She manages to make it through each day with the help of her friends and the art she loves to make. While her parents’ money troubles cause more and more stress, Deena wonders if she can use her artistic talents to ease their burden. She creates a logo and social media account to promote her mom’s home-based business selling clothes from Pakistan to the local community.

Twelve-year-old Lidia is outside her grandfather's house when planes fly overhead, bearing the Nazi cross on each wing. Before the bombs hit the ground, Lidia realizes her life is about to change forever. Poland has fallen under German occupation, and her father makes the brave decision to join the Polish army to fight against the Nazis. Lidia wants to follow him into war, but she's far too young, and she's needed by her mother and brother. After her family returns to Warsaw, Lidia continues to play the piano, but she also wants to aid the Jewish people held captive in the Warsaw Ghetto.

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. 

"You are to report to Station X at Bletchley Park, Buckinghamshire, in four days time....That is all you need to know." This was the terse telegram hundreds of young women throughout the British Isles received in the spring of 1941, as World War II raged. As they arrived at Station X, a sprawling mansion in a state of disrepair surrounded by Spartan-looking huts with little chimneys coughing out thick smoke—these young people had no idea what kind of work they were stepping into. Who had recommended them? Why had they been chosen? Most would never learn all the answers to these questions.