Dedication

  For truth tellers everywhere

  Contents

  Cover

  Title Page

  Dedication

  One: Finn

  Two: Emma, A Few Minutes Earlier

  Three: Chess

  Four: Finn

  Five: Emma

  Six: Chess

  Seven: Finn

  Eight: Emma

  Nine: Chess

  Ten: Finn

  Eleven: Emma

  Twelve: Chess

  Thirteen: Finn

  Fourteen: Emma

  Fifteen: Chess

  Sixteen: Finn

  Seventeen: Emma

  Eighteen: Chess

  Nineteen: Finn

  Twenty: Emma, at the Same Time

  Twenty-One: Chess

  Twenty-Two: Finn

  Twenty-Three: Emma

  Twenty-Four: Chess

  Twenty-Five: Finn

  Twenty-Six: Emma

  Twenty-Seven: Chess

  Twenty-Eight: Finn

  Twenty-Nine: Emma

  Thirty: Chess

  Thirty-One: Finn

  Thirty-Two: Emma

  Thirty-Three: Chess

  Thirty-Four: Finn

  Thirty-Five: Emma

  Thirty-Six: Chess

  Thirty-Seven: Finn

  Thirty-Eight: Emma

  Thirty-Nine: Chess

  Forty: Finn

  Forty-One: Emma

  Forty-Two: Chess

  Forty-Three: Finn

  Forty-Four: Emma

  Forty-Five: Chess

  Forty-Six: Finn

  Forty-Seven: Emma

  Forty-Eight: Chess, Emma, Finn, Kona, Kafi, Rocky, and Lana

  Forty-Nine: Emma

  Fifty: Chess

  Fifty-One: Emma

  Fifty-Two: Finn

  Fifty-Three: Chess

  Fifty-Four: Emma, Back at the Alternate World’s Cuckoo Clock Building

  Fifty-Five: Finn

  Fifty-Six: Chess

  Fifty-Seven: Emma, Back at the Alternate World’s Cuckoo Clock Building

  Fifty-Eight: Finn

  Fifty-Nine: Chess

  Sixty: Emma

  Sixty-One: Everyone, That Evening

  Acknowledgments

  About the Author

  Back Ad

  Books by Margaret Peterson Haddix

  Copyright

  About the Publisher

  One

  Finn

  Mom inched the car into the garage. The Greystones were finally home.

  But nobody moved until Mom said, “Quick. Grab whatever you need from the house, and let’s get out of here.”

  Finn’s older sister and brother, Emma and Chess, sprang out of the car and dashed for the door into the kitchen. But Finn shook his head.

  “I don’t need anything.” He dived into the front seat of the car, grabbed Mom’s hand, and held on tight. “I’ll help you.”

  “Oh, Finn,” Mom said. She drew up the corners of her mouth into a shaky smile. “You can take your favorite toys. Or games. There’s room. It might be a while before we come back here again. Or . . .” She looked down at Finn’s hand in hers and whispered, “It might be forever.”

  A month ago, Mom wouldn’t have said that. She would have pretended everything was fine. She had pretended everything was fine, actually—back then, she hadn’t told Finn or Emma or even Chess how much danger she was in. She’d just left, and pretended it was an ordinary “business trip.”

  A month ago, she’d probably treated Finn and Emma and Chess as though they were younger than eight and ten and twelve.

  Now it felt like they’d all grown up.

  And Mom was the one they needed to protect.

  “Toys and games?” Finn said, like those were unfamiliar words. The corners of Mom’s mouth quivered. He tried again. “We’re going to stay at Ms. Morales’s house for now, right? She’s got all the old toys and games Natalie outgrew. We could probably play forever and never get to them all.” He leaned close and whispered, “They’re really rich. You know?”

  Mom’s smile almost looked real now.

  “And generous,” she murmured.

  “Come on,” Finn said.

  He reached past her to open Mom’s car door. Together, they walked into the house. Chess was coming up from the basement.

  “All clear,” he reported. “Emma checked upstairs and I checked downstairs. There’s nobody here.”

  Mom put her hand over her mouth. Her already-pale face turned completely white.

  “I should have checked,” she said. “I should have left you three kids in the car until I knew for sure it was safe. . . .”

  Chess might as well have had his thoughts written on his face: Nowhere’s safe. But he patted Mom on the arm and repeated, “Nobody’s here.”

  Chess was at that age when it seemed like he could grow three inches taller overnight. That must have happened last night, because he towered over Mom now. His arms and legs looked even spindlier and more stretched out than ever, as though his whole body were made of Silly Putty and someone had pulled it too far.

  “But anybody could show up, anytime,” Mom muttered. “If they’ve been using our house as a crossing point . . .”

  She meant the bad guys. Finn, Emma, and Chess had known nothing about it until a month ago, but all four of the Greystones had escaped from a bad place when Finn was only a baby. The bad place was a completely different world—Finn had started thinking of it as almost a mirror image of the world he’d known most of his life. Duplicated versions of lots of people existed in both worlds, but they were sadder and meaner—or at least more desperate—in the other world.

  Even some of the people who were actually nice in the other world had to pretend to be mean, just to survive.

  Finn liked to think of it as though his entire family had escaped from the bad world when he was only a baby, but he knew that wasn’t completely true.

  His father had died in the other world. He’d been killed.

  And could you really say that his family had escaped, when the bad people had found a way to follow them?

  And when Finn, Emma, and Chess—and their friend Natalie—had had to go back to the other world again and again, and they still hadn’t ended all the danger?

  “We’re going to fix everything,” Finn said now. “We’re going to make it so the bad guys never bother us again. We’ll make it so they never bother anyone again! Even in the other world!”

  Mom ruffled Finn’s hair. She always did that. If he’d wanted to, Finn could have closed his eyes and imagined that the last month of his life hadn’t happened, and he was still just a goofy little kid whose worst problems were that his hair stuck up whether anyone mussed it or not, and he had trouble remembering not to talk all the time in class.

  But Finn kept his eyes open, and fixed on Mom’s face.

  “You’re . . . so brave,” she whispered. “My little Finn. Who knew?” She turned to Chess. “And you and Emma . . .”

  “Mom, we really shouldn’t stay here long,” Chess said gently. “I just need one box from upstairs, and then I’ll be ready. I don’t think Emma wanted much more than that.”

  Mom squared her shoulders.

  “Then Finn and I will get everything I need from the Boring Room,” she said.

  The Boring Room was what the Greystone kids had always called their mother’s basement office. It had turned out not to be so boring, after all. Finn hoped neither Mom nor Chess noticed how hard he had to work to quell a shiver of fear as he started walking toward the stairs.

  Halfway down the steps, Mom sniffed, made a face, and laughed.

  “I guess you were all too busy rescuing me to clean Rocket’s kitty litter, huh?” she asked.

  “It wasn’t my turn,” Finn said. “Honest!”

  And just for a moment, this felt normal and right, to argue over chores. But the Greystones’ pet cat, Rocket, was still at Natalie’s dad’s house, and there was no telling when they’d be reunited.

  And when Finn reached the bottom of the stairs, the first thing he saw was a pile of Hot Wheels cars. Emma had dumped them on the floor a week ago when she and Chess had received an unpleasant surprise.

  We won’t have any surprises today, Finn told himself. See? This is just our normal basement rec room, and that’s just Mom’s normal Boring Room over there. . . .

  He trailed Mom into the Boring Room with its empty desk and vacant bookshelves. And then Finn couldn’t pretend anything was normal, because the secret door to the hidden space behind the Boring Room hung wide open. Mom turned on the light and ducked through the secret doorway to peer around at the shelves holding canned food and boxes of cash. The shelves at the back of the secret room were cracked and sagging. But that was the only sign that a tunnel had once lain behind those shelves, leading into the other world.

  Mom picked up a can of tuna fish and absentmindedly rolled it back and forth in her hands.

  “I thought I was so well prepared,” she muttered.

  Finn grabbed one of the boxes.

  “We should take the cash,” he said, because anybody could have figured that out.

  He opened the box—it was empty.

  “The police already took it as evidence,” Mom said. “Mr. Mayhew explained all about that.” Mr. Mayhew was Natalie’s dad. “I’ll have to go down to the police station and claim it and . . . I just haven’t felt up to doing that yet. You know. I may have to lie.”

  “B
ecause the police don’t know about the other world,” Finn said. “They don’t know you were trapped there. Because they can’t know about the other world.”

  This made Mom snort and nearly giggle, and it was like having Normal-Mom back, Before-Everything-Happened-Mom back.

  “Can you imagine telling them the truth?” she asked. “They’d never believe me!”

  “Honest, Officer!” Finn said, as though she’d asked him to act it out. “You really don’t want to meet your evil twin!”

  Mom’s smile faded.

  “Finn . . . remember, we’re from the other world,” she murmured, still rolling the tuna can back and forth in her hands. “You can’t assume one world’s all good and the other’s all evil. I have to believe that everyone in the other world still has the capacity to—”

  She broke off as chimes pealed through the house. It was the doorbell.

  “Mom?” Chess called from above. “I don’t know who . . .”

  Mom took off running for the stairs. Finn was right on her heels.

  Then Finn heard Emma cry from even farther away: “No, Mom, I see who it is! Stay hidden!”

  Two

  Emma, A Few Minutes Earlier

  Emma had just picked up the book Codes and Ciphers for Kids when she heard a car drive by outside. Her heart thumping, she raced to her bedroom window.

  A rust-colored SUV was pulling into the driveway next door.

  And . . . it was just their neighbors, the Hans, bringing their son Ian home from a soccer game. He had a smear of mud across his face, and his green uniform looked sweaty.

  Perfectly normal, Emma thought. Nothing out of the ordinary.

  She was pretty sure Ian had soccer games every Saturday. Still, it took a moment for her heart rate to return to normal.

  This is . . . not very scientific of me, Emma thought.

  If she made a pie chart showing her entire life, she could label almost all of it “Normal” or “Ordinary.” Or maybe “Happy and Fun.” Maybe that was the label she really wanted. Only a tiny sliver—the past month—would need the label “Weird and Scary.”

  So didn’t it stand to reason that most of what she saw around her now would continue to be ordinary and normal?

  Oops, she thought. I forgot about the first two years of my life, when we all lived in the other world. That was weird and scary, too. I just didn’t know it.

  And, really, hadn’t her entire ten years of life always had weird stuff going on in the background? She’d just thought everything was ordinary and normal because she didn’t know about the other world or the secrets Mom had been keeping until about a month ago.

  Anyhow, the labels shouldn’t be “Happy and Fun” vs. “Weird and Scary,” she told herself. Those aren’t opposites.

  The happiest moment of her life had been rescuing her mom from the other world. And even though she’d been worried and scared, she’d had fun figuring out the codes that Mom had left behind. On their trips to the other world, those codes had helped the Greystone kids and their friend Natalie to rescue not only Mom, but also Natalie’s mom, a man named Joe Deweese, and three kids who were the closest thing this world had to doubles of Emma, Chess, and Finn. Those three—the Gustano kids—had been kidnapped by people from the other world who thought the Gustano kids belonged to Mom. The Gustanos’ mom was this world’s version of Mom, but their father wasn’t like the Greystones’ dad. So the kids weren’t exact duplicates like their mothers were.

  And the Gustanos belonged in this world, where everything was normal and ordinary and sane. While the Greystones were . . . were . . .

  Caught in between?

  Emma decided it was too messy to try to figure out the right description—or a pie chart of her life. She liked it better when math and science gave her clear-cut, logical answers.

  She liked it when life made sense.

  She looked down at the book in her hand, Codes and Ciphers for Kids. She’d had the idea that maybe she should take the book with her to Ms. Morales’s house. Just in case there were more codes to crack as the Greystones and Natalie’s family decided what to do next. But after everything Emma had been through, the book looked babyish now. Nobody was going to slip her a message written in lemon juice. Nobody was going to send her codes as easy to decipher as pig latin.

  She put the book back on her shelf. There really wasn’t anything she needed from her room. During the past month, the three Greystone kids had been living with first Natalie’s mom and then Natalie’s dad, so Emma already had all the clothes she wanted.

  But Emma still slid open her closet door and dug past boxes of Legos and crumpled-up diagrams of inventions she might make someday. At the back of the closet, she found a little plastic safe that she’d begged for at Christmas one year. She spun the combination lock forward and back and forward again, and the door swung open.

  The only things she kept inside were an old-fashioned calculator that had belonged to Mom when she was a little girl, and a piece of paper with columns of numbers scrawled from top to bottom. As far as Emma knew, the numbers were just scribblings, a scratch pad of notes. Gibberish. But her father had written those numbers. And even though Emma had been only two when he died, she could remember clutching this paper and saying to Mom, “Daddy did? Daddy did?”

  And Mom would always say, “Yes, that’s your father’s math.”

  Was that the only nudge Emma needed to fall in love with math, even as a two-year-old?

  Emma heard another car puttering a little too slowly down the street. She tensed, listening hard.

  Stop it! she told herself. It’s a public street. All sorts of vehicles drive by all the time. This has nothing to do with my family. Or the other world . . .

  She shoved her thick, dark, curly hair away from her face and forced herself to go back to staring at the page full of numbers. With everything else they had to worry about, wasn’t it just silly and sentimental to want to take this paper with her?

  Outside, the car shut off its engine. It sounded . . . close.

  Emma stomped her feet with impatience, because she couldn’t stop straining to listen to what was happening outdoors. She tried to force herself to study her shoes instead: her favorite red sneakers. Emma could remember her joy at finding these shoes on a shopping trip with Mom a few months ago. It felt like Emma had been a totally different person then—someone who had no trouble concentrating on numbers. Someone who knew nothing about other worlds or danger.

  Someone who thought happiness was as simple as a pair of red shoes.

  Thud. Thud. Those were definitely car doors closing outside. Emma couldn’t help analyzing the sounds. Had a third or fourth door shut at the same time? Was each thud doubled?

  Emma gave up and went back to the window.

  A tan car sat in the Greystones’ driveway. It wasn’t one Emma recognized. But that didn’t mean anything, because ever since Mom had gotten back from the other world, people kept calling and stopping by to bring them casseroles and congratulations, celebratory cards and gifts. The Greystones’ friends didn’t even know the whole story, but they were so relieved that everything had turned out okay and the family’s long ordeal was over.

  (At least, most of their friends thought the ordeal was over. Natalie’s family and Joe Deweese knew better.)

  Emma heard footsteps. The tan car was close to the garage, and Emma had taken too long getting to the window. So whoever had been in the car was already on the sidewalk leading to the front porch. And Emma couldn’t see that sidewalk because the porch roof blocked her view. She had to yank her window open and poke her head out.

  And she’d delayed a little too long doing that, too. She caught only a quick glimpse of the last person to step onto the porch.

  No, it was too fast even to be called a glimpse. It was more like an impression—the idea of the person, not the actual view.

  And still Emma recognized the person exactly: her stance, her bearing, the way she swung her arms when she walked, the way she clenched her jaw to brace herself for some unpleasant task or chore. Emma had never met this person before in her life, but she knew exactly who it was: Mom’s double from this world. Mrs. Gustano.

  Oh no. Oh no . . .

  They’d all been so worried about dangerous people from the other world showing up again. Why hadn’t any of them thought about how certain people from this world were huge threats, too?

  Emma jerked her head back into the house, slammed the window shut, and took off racing for the stairs.