ages 8-15 Katie is a regular 11-year-old girl with the typical problems of a fifth grader: a bully named Maryann McAllister who won't leave her alone, a little sister Emma who can drive her crazy, and parents who just don't seem to understand her. That is, until an incredible secret changes her life forever. The discovery of an ancient key hidden in the old dusty attic of Katie's house provides the promise of mystery and excitement she craves. When her dad dismisses it as worthless, she resolves to uncover the truth - even if no one knows. Late one night as her sister sleeps soundly, Katie...