A New York Times bestselling series A USA TODAY bestselling series A California Young Reader Medal–winning series Sophie battles the rebels—and recovers dark memories from her past—in this jaw-dropping fourth book in the bestselling Keeper of the Lost Cities series.Sophie Foster is on the run—but at least she's not alone. Her closest friends from the Lost Cities have gone with her to join the Black Swan. They still have doubts about the shadowy organization, but the only way to find answers is to start working with them. And as they settle into their new lives, they uncover secrets bigger than anything they'd imagined. But their enemies are far from done, and unleash a terrifying plague that threatens the safety of an entire species. Sophie and her friends fight with everything they have—with new allies joining them—but every choice has consequences. And trusting the wrong person could prove deadly. In this game-changing fourth book in the Keeper of the Lost Cities series, Sophie must question everything to find a truth that will either save her world—or shatter it. Cover......Page 2 Dedication......Page 4 Preface......Page 5 Chapter One......Page 7 Chapter Two......Page 20 Chapter Three......Page 28 Chapter Four......Page 35 Chapter Five......Page 44 Chapter Six......Page 52 Chapter Seven......Page 62 Chapter Eight......Page 70 Chapter Nine......Page 77 Chapter Ten......Page 86 Chapter Eleven......Page 97 Chapter Twelve......Page 106 Chapter Thirteen......Page 111 Chapter Fourteen......Page 122 Chapter Fifteen......Page 135 Chapter Sixteen......Page 141 Chapter Seventeen......Page 153 Chapter Eighteen......Page 159 Chapter Nineteen......Page 167 Chapter Twenty......Page 174 Chapter Twenty-One......Page 181 Chapter Twenty-Two......Page 188 Chapter Twenty-Three......Page 193 Chapter Twenty-Four......Page 197 Chapter Twenty-Five......Page 204 Chapter Twenty-Six......Page 213 Chapter Twenty-Seven......Page 223 Chapter Twenty-Eight......Page 230 Chapter Twenty-Nine......Page 239 Chapter Thirty......Page 245 Chapter Thirty-One......Page 251 Chapter Thirty-Two......Page 257 Chapter Thirty-Three......Page 265 Chapter Thirty-Four......Page 274 Chapter Thirty-Five......Page 283 Chapter Thirty-Six......Page 288 Chapter Thirty-Seven......Page 298 Chapter Thirty-Eight......Page 307 Chapter Thirty-Nine......Page 314 Chapter Forty......Page 322 Chapter Forty-One......Page 331 Chapter Forty-Two......Page 336 Chapter Forty-Three......Page 343 Chapter Forty-Four......Page 350 Chapter Forty-Five......Page 358 Chapter Forty-Six......Page 363 Chapter Forty-Seven......Page 368 Chapter Forty-Eight......Page 373 Chapter Forty-Nine......Page 379 Chapter Fifty......Page 385 Chapter Fifty-One......Page 394 Chapter Fifty-Two......Page 400 Chapter Fifty-Three......Page 407 Chapter Fifty-Four......Page 415 Chapter Fifty-Five......Page 422 Chapter Fifty-Six......Page 428 Chapter Fifty-Seven......Page 437 Chapter Fifty-Eight......Page 443 Chapter Fifty-Nine......Page 448 Chapter Sixty......Page 454 Chapter Sixty-One......Page 465 Chapter Sixty-Two......Page 469 Chapter Sixty-Three......Page 475 Chapter Sixty-Four......Page 485 Chapter Sixty-Five......Page 493 Chapter Sixty-Six......Page 503 Chapter Sixty-Seven......Page 506 Chapter Sixty-Eight......Page 511 Chapter Sixty-Nine......Page 519 Chapter Seventy......Page 524 Chapter Seventy-One......Page 530 Chapter Seventy-Two......Page 537 Chapter Seventy-Three......Page 542 Chapter Seventy-Four......Page 549 Chapter Seventy-Five......Page 553 Chapter Seventy-Six......Page 561 Chapter Seventy-Seven......Page 567 Chapter Seventy-Eight......Page 572 Chapter Seventy-Nine......Page 577 Acknowledgments......Page 585 ‘Lodestar’ Teaser......Page 588 About Shannon Messenger......Page 605 Copyright......Page 608 "Sophie battles the rebels--and recovers dark memories from her past. She must question everything to find a truth that will either save her world--or shatter it"-- Provided by publisher