New York Times bestselling author Margaret Peterson Haddix takes readers on a thrilling adventure filled with mysteries and plot twists aplenty in this absorbing series about family and friendships. Perfect for fans of A Wrinkle in Time and The City of Ember! What makes you you? 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 kids share their same first and middle names. They’re the same ages. They even have identical birthdays. Who, exactly, are these strangers? Before Chess, Emma, and Finn can question their mom about it, she takes off on a sudden work trip and leaves them in the care of Ms. Morales and her daughter, Natalie. But puzzling clues left behind lead to complex codes, hidden rooms, and a dangerous secret that will turn their world upside down. Praise for The Strangers: "A secret-stacked, thrilling series opener about perception, personal memories, and the idiosyncrasies that form individual identities." (Publishers Weekly, starred review) * Winter 2018–2019 Kids' Indie Next List Pick * Indie Bestseller * Time for Kids Book Club: Top 10 Summer Reads * PW Best Books 2019 * Texas Bluebonnet Award List 2020-2021 * 2020 LITA Excellence in Children’s and Young Adult Science Fiction Notable Book: The Eleanor Cameron Notable Middle Grade Books List *

In the dazzling conclusion to the Greystone Secrets series from New York Times bestselling author Margaret Peterson Haddix, the Greystones and their doubles, the Gustanos, must team up to save the alternate world—before both worlds are lost. All secrets are revealed in this page-turning, suspenseful story that shows the importance of teamwork, telling your story, and taking action when it matters most. As book three of the Greystone Secrets series opens, the Greystone kids have their mother back from the evil alternate world, and so does their friend Natalie. But no one believes the danger is past. Then mysterious coins begin falling from unexpected places. They are inscribed with codes that look just like what the Greystones’ father was working on before he died. And with the right touch, those symbols transform into words: PLEASE LISTEN. And FIND US, SEE US, HELP US. . . . The coins are messengers, telling the Greystones and their allies that their friends in the alternate world are under attack—and that the cruel, mind-controlling forces are now invading the better world, too. After another spinning, sliding journey across worlds, the Greystone kids must solve mysteries that have haunted them since the beginning: what happened when the Gustanos were kidnapped, what created the alternate world, and how a group of mismatched kids can triumph once and for all against an evil force that seems to have total control.

The second book in the Greystone Secrets series from the master of plot twists, Margaret Peterson Haddix—perfect for fans of A Wrinkle in Time and The City of Ember! Until their mother vanished, the Greystone kids—Chess, Emma, and Finn—knew nothing about the other world. Everything is different there. It’s a mirror image, except things are wrong. Evil. Their mother tried to fix it, but she and an ally got trapped there along with Ms. Morales, their friend Natalie’s mom. Now the four kids—brave Chess, smart Emma, kind Finn, and savvy Natalie—are determined to rescue everyone. To do so, they have to go back: into the other world, where even telling the truth can be illegal. But in such a terrifying place, Chess doubts he can ever be brave enough. Despite all her brains, Emma can’t seem to break the code. With everything spiraling out of control, Finn has to pretend he’s okay. And for Natalie, the lies of the other world include some she wishes were actually true. What if she’s gotten so used to lying she no longer knows what to believe? The second book in the Greystone Secrets series, The Deceivers, by bestselling author Margaret Peterson Haddix, continues the twisty and suspenseful story of the Greystone kids and examines the power of the truth—or a lie—to alter lives, society, and even an entire reality. Praise for Greystone Secrets #1: The Strangers *Winter 2018-2019 Kids' Indie Next List Pick* “A secret-stacked, thrilling series opener.” —Publishers Weekly, starred review “An engrossing mystery with a cliff-hanger ending to raise the stakes and delight fans new and old.” —Booklist “Maintains suspense from the beginning to the cliffhanger ending. A high-stakes adventure full of teamwork with a multifaceted mystery and complex themes.” —Kirkus Reviews

In this exciting sequel to The Mystery of Black Hollow Lane, Emmy's adventures continue as she deals with a sinister organization, a missing father, and secrets she's not sure who to trust with. After spending the summer at home in Connecticut, Emmy cannot wait to return to Wellsworth for the new school year and reunite with her best friends, Lola and Jack. Before she leaves Emmy receives a note from her father telling her to hide the remaining relics The Order of Black Hollow Lane are after—and to trust no one. When Lola is framed for a serious crime she didn't commit, Emmy knows that she and her friends are not safe. The Order wants Emmy to give up her father's location... if she doesn't, those she loves will pay the price. Emmy and Jack need to figure out a way to clear Lola's name without bending to the Order's sinister demands. And Emmy needs to figure out who she can trust with her secrets before it's too late.

Fourteen-year-old Avery Armisted and sixteen-year-old Kayla Butts, once good friends, begrudgingly travel to Spain together for a summer vacation where they uncover a secret their families kept hidden from them their entire lives.

From New York Times bestselling author Margaret Peterson Haddix comes the first book in a “crisp, intriguing, and thought-provoking” (Booklist, starred review) new series about twins who are on a quest to discover the secrets being kept by their new 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 hidden.

So my only protection is a kindergarten teacher and a ninety-eight-pound female minister....And they don't even believe I'm in danger. As Bethany approaches her thirteenth birthday, her parents begin acting more oddly than usual: Her mother cries constantly, and her father barely lets Bethany out of his sight. Then one morning he hustles the entire family into the car, drives across several state lines -- and leaves Bethany with an aunt she never knew existed. Bethany has no idea what's going on. She's worried that her mom and dad are running from some kind of trouble, but she can't find out because they won't tell her where they are going. Bethany's only clue is a few words she overheard her father tell her aunt Myrlie: "She doesn't know anything about Elizabeth." But Aunt Myrlie won't tell Bethany who Elizabeth is, and she won't explain why people in her small town react to Bethany as if they've seen a ghost. The mystery intensifies when Bethany gets a package from her father containing four different birth certificates from four states, with four different last names -- and thousands of dollars in cash. And when a strange man shows up asking questions, Bethany realizes she's not the only one who's desperate to unravel the secrets of her past. In this exhilarating thriller, Margaret Peterson Haddix crafts a taut story so full of twists and turns, readers will be gripped until the startling conclusion.