Piper's grandmother dies and she finds a book in the attic (her room ) and her words appear and it tells her about how she has the power of the sun and the moon and that there is beauty in the power of the sun but there is also darkness the moon feeds off of her anger and other bad emotions and the ink will spread and eventually consume the sun left in her heart she doesn't quite understand till her step-dad forces her to give her locket from her grandmother to her step-sister she takes the book and names it the book of shadows and wrote than she finally understood what her grandmother meant when she got a sharp pain in her left arm and some ink appeared in the shape of the moon