But puzzling clues left behind lead to complex codes, hidden rooms, and a dangerous secret that will turn their world upside down. 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. The other kids share their same first and middle names. 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. They’ve been a happy family, just the three of them and their mom.

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. Perfect for fans of A Wrinkle in Time and The City of Ember ! What makes you you ? The Greystone kids thought they knew. 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.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. 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. And with the right touch, those symbols transform into words: PLEASE LISTEN. They are inscribed with codes that look just like what the Greystones' father was working on before he died. Then mysterious coins begin falling from unexpected places. 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. 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. Margaret Peterson Haddix, the Greystones and their doubles, the Gustanos, must team up to save the alternate world-before both worlds are lost. In the dazzling conclusion to the Greystone Secrets series from New York Times bestselling author.

The greystone secrets