"Sheena Meyer is the girl that brings an extra sandwich to school each day just in case someone doesn't have lunch. She's also the girl that questions and investigates everything, driving her parents and teachers nuts. She spends most days waiting for some grand event to happen and change her life. But this isn't what she had in mind. The Murk is coming for her because of a gift she doesn't know she has. Nine years ago an angel appeared in front of select kids all over the world. In Michigan, it appeared in a willow tree in front of a four-year-old little girl. She's the only child that saw it, the one with the gift. Sheena is now thirteen and has since forgotten what she saw. But things change when her father is in a terrible accident, and she witnesses a supernatural being save him. 'I saw what you did. Come back!' An elderly man, the arrival of a peculiar new kid at school, and mysterious text messages will change everything Sheena has ever believed in, sweeping her out of a humdrum, teenage existence, and setting in motion what one little girl's destiny can mean to the world.