The stunning conclusion to the Clone Codes trilogy There is a wicked system of operation inside the Topas Corporation, where clones are produced. Only authorized Topas officials are allowed inside. Only they, along with the clones themselves, know what happens within the walls of the world's largest and most powerful cloning company. This final book of The Clone Codes plunges readers into this strange reality. At the same time, The World Federation of Nations has issued an urgent decree to the masses--find Houston Ye, a cyborg, and Leanna Deberry, a clone, both fugitives! There is a $1 million bounty on each of their heads if captured alive. Once again, the McKissacks blend a futuristic world with events from world history to create a gripping sci-fi adventure.

Patricia and Fredrick McKissack are the authors of numerous award-winning books, including REBELS AGAINST SLAVERY: AMERICAN SLAVE REVOLTS and BLACK HANDS, WHITE SAILS: THE STORY OF AFRICAN AMERICAN WHALERS, both Coretta Scott King Honor Books, and SOJOURNER TRUTH: AIN’T I A WOMAN? a Coretta Scott King Honor Book and winner of the Boston Globe/Horn Book Award. Patricia and Fredrick McKissack live in St. Louis, Missouri. John McKissack resides in Memphis, Tennessee. Patricia C.and Fredrick L. McKissack are the authors of numerous and acclaimed books, including REBELS AGAINST SLAVERY: AMERICAN SLAVE REVOLTS and BLACK HAND, WHITE SAILS: THE STORY OF AFRICAN AMERICAN WHALERS, both CSK Honor Books. They have also collaborated on SOJOURNER TRUTH: AIN’T I A WOMAN?, a CSK Honor Book, winner of an NAACP Image Award, and a Boston Globe/Horn Book Award. For the first time this husband-wife team invites their grown son, John McKissack, a mechanical engineer, to join them as a technical advisor in the creation of this new series. The elder McKissacks live in St. Louis, MO. John lives in Memphis, TN with his wife, Michelle, and three sons, John, Everett and Peter.