Precocious Katy Thatcher comes to realize what a gentle, silent boy did for his family. He meant to help, not harm. It didn't turn out that way.

When Grady and his dad learn that the town oddball, Eudora "Kooky" Klinch, left something for them in her will, they can only imagine what it might be. When it turns out it's an old scrap of 300-year-old tapestry, they are bitterly disappointed. But the cloth comes with a note saying, "This is no ordinary piece of needlework. It's a treasure map. Riddles and Clues. To the victor go the riches." Grady's dad dismisses it, but Grady thinks this could be the chance of a lifetime.

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.

Twelve-year-old Dory Byrne lives with her brothers on New York City's Lower East Side, waiting impatiently through the darkest hours of World War II for her pop to come home from fighting Hitler. Legally speaking, Dory's brother, Fish, isn't old enough to be in charge of Dory and her younger brother, Pike, but the neighborhood knows the score and, like Pop always says, "the neighborhood will give you what you need." There's the lady from the bakery, who saves them leftover crullers. The kind landlord who checks in on them.

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.