Margaret Peterson Haddix

Jonah, Katherine, Chip, and Alex suddenly find themselves in 1483 at the Tower of London, where they discover that Chip and Alex are Prince Edward V and Richard of Shrewsbury, imprisoned by their uncle, King Richard III, but trying to repair history without knowing what is supposed to happen proves challenging. Author's note includes historical facts about the princes and king.

Twelve-year-old Zola, who has a surprising connection to Jessie, discovers that she is stuck in a fake utopian future, and that those around her are counting on her to help them escape.

In a future world of false identities, government lies, and death threats, Luke feels drawn to the younger brother of the boy whose name Luke has taken.

Thirteen-year-old Bethany's parents have always been overprotective, but when they suddenly drop out of sight with no explanation, leaving her with an aunt she never knew existed, Bethany uncovers shocking secrets that make her question everything she thought she knew about herself and her family.

In a society that allows families to have only two children, third child Matthias joins the Population Police to infiltrate their system.

Throughout the hunt for the 39 Clues, Amy and Dan Cahill have uncovered history's greatest mysteries and their family's deadliest secrets. But are they ready to face the truth about the Cahills and the key to their unmatched power? After a whirlwind race that's taken them across five continents, Amy and Dan face the most the difficult challenge yet -- a task no Cahill dared to imagine. When faced with a choice that could change the future of the world,...

Nick and Eryn's mom is getting remarried, and the twelve-year-old twins are skeptical when she tells them their lives won't change much. Well, yes, they will have to move. And they will have a new stepfather, stepbrother, and stepsister. But Mom tells them not to worry. They won't ever have to meet their stepsiblings. This news puzzles Nick and Eryn, so the twins set out on a mission to find out who these kids are-and why they're being kept hidden....

In Under Their Skin, twins Nick and Eryn successfully met their new stepsiblings, Ava and Jackson. But in doing so, the twins found themselves on a mission to discover how to prevent humanity from facing certain doom. Now, their two families are joined together to save not only themselves, but everyone-human and robotic. Can they figure out how before it's too late?

Publisher Annotation: New York Times bestselling middle-grade thriller author Margaret Peterson Haddix returns to the Mysteries of Trash and Treasure series as Colin and Nevaeh unravel a mystery from the 1930s and explore the emotions associated with death and dying.

It's been barely a day since Edwy left Fredtown to be with his parents and, already, he is being sent away. He's smuggled off to boarding school in Refuge City, where he will be with his brother and sister, who don't even like him very much. The boarding school is nothing like the school that he knew, there's no one around looking up to him now, and he's still not allowed to ask questions! Alone and confused, Edwy seeks out other children brought...