In this spellbinding debut novel, two estranged half-sisters tasked with guarding their family's library of magical books must work together to unravel a deadly secret at the heart of their collection - a tale of familial loyalty and betrayal, and the pursuit of magic and power.

Winner of the 2010 Newbery Medal. Miranda is an ordinary sixth grader, until she starts receiving mysterious messages from somebody who knows all about her, including things that have not even happened yet. Each message brings her closer to believing that only she can prevent a tragic death. Until the final note makes her think she’s too late....