Andrew’s just trying to make it through Picture Day, which is easier said than done when it seems like the whole world is out to get him—from a bully to a science experiment gone wrong to a someone else’s juice snot (don’t ask). But as Andrew goes through the school day, and as one thing after another goes wrong, that little kernel of worry in his stomach is getting hotter and hotter, until it threatens to pop and turn into a public panic attack, his worst fear. He tries to keep his anxiety at bay, but the news that his grandmother with Alzheimer’s is missing is too much.

"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.

Ten-year-old Lola has always been touched by magic. In her Mexico City home, built around a towering tree, she is accustomed to enchanted blooms that change with the seasons, a sandbox that spits out mysterious treasures, and mischievous chaneques that scuttle about unseen by all but her. Magic has always been a part of her life, but now she must embrace the extraordinary as never before. Ever since The Thing That Happened, Lola's brother Alex has been sick. As his condition worsens, something begins eating away at the tree, causing its leaves and blossoms to crumble like ash.

Fern’s lived at the Ranch, an off-the-grid, sustainable community in upstate New York, since she was six. The work is hard, but Fern admires the Ranch's leader, Dr. Ben. So when Fern’s mother sneaks them away in the middle of the night and says Dr. Ben is dangerous, Fern doesn't believe it. She wants desperately to go back, but her mom just keeps driving. Suddenly thrust into the treacherous, toxic, outside world, Fern thinks only about how to get home again.

It's August 1999. For twelve-year-old Michael Rosario, life at Fox Run Apartments in Red Knot, Delaware, is as ordinary as ever—except for the looming Y2K crisis and his overwhelming crush on his sixteen-year-old babysitter, Gibby. But when a disoriented teenage boy named Ridge appears out of nowhere, Michael discovers there is more to life than stockpiling supplies and pining over Gibby.