The CodeBook - 2004
Leaving only a cryptic note, Andrew and Evie's mother vanishes on their eleventh birthday. Now, almost a year later, the twins receive a mysterious package from someone named Spy X. They soon learn that the contents of the box will lead them on an incredible journey toward finding their mother - and into a world where no one's identity can be trusted.
Publisher: New York : Scholastic, c2004
Branch Call Number: L
Characteristics: 139 p.
Alternative Title: Code