On the 8th Day of Book Suggestions...Zero Day by Jan Gangsei

Addie was kidnapped from her parents' home eight years ago.  Now, she has returned, but her family does not live in the same place any longer.  Her family now resides in the White House.  Addie sees her family and friends, but things are different now--and not just the address.  Addie is different.  Is this person really Addie?  How did she escape from her kidnappers?  Did she escape or did they let her go for another reason? Find out in this quick page-turner.