Margaret Peterson Haddix

"Clifton, Indiana, 1840. Jessie Keyser lives with her family in a small log cabin. Her father is a blacksmith and her mother cares for her and her siblings--though, at night, Jessie's mother also secretly tends to everyone who is getting sick in their village. One night, she tells Jessie that there's a diptheria outbreak--a dangerous disease. And if they don't act soon, some of those sick children could die. Then Jessie's mother tells her that only...

In a future where the law limits a family to only two children, third-born Luke has been in hiding for the entire twelve years of his life, until he enters boarding school under an assumed name and is forced to face his fears.

Thirteen-year-old Nina is imprisoned by the Population Police, who give her the option of helping them identify illegal "third-born" children, or facing death.

In the future, false identities, government lies and death threats keep Luke from being safe with his new identify when the younger brother of the boy whose name Luke has taken shows up at school.

"The Greystone kids thought they knew. Chess has always been the protector over his younger siblings, Emma loves math, and Finn does what Finn does best--acting silly and being adored. They've been a happy family, just the three of them and their mom. But everything changes when reports of three kidnapped children reach the Greystone kids, and they're shocked by the startling similarities between themselves and these complete strangers. The other...

Eleven-year-old Marin and her neighbor Charley hope that by preventing a disaster that occurred twenty years ago, they can save Charley's dad from a future of guilt and self-destructive behavior.

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,...

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.

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...

Sixteen-year-old Lindsay, a former child star whose career ended when she developed the ability to hear what anyone, anywhere says about her and apparently suffered a nervous breakdown, comes to see this as an asset when, after her father's death, she learns that she is not alone.