by Diana Wynne Jones ยท 2012
ISBN: 0062200836 9780062200839
Category: Young Adult Fiction / Horror
Page count: 304
<p>There's been an accident!<br>Something's wrong!</p><p>She doesn't know who she is, and doesn't know why she's invisibly floating through the buildings and grounds of a half-remembered boarding school. Then, to her horror, she encounters the ancient evil that four peculiar sisters have unwittingly woken -- and learns she is their only hope against a deadly danger.</p><p>A ghost, uncertain of her identity, watches the four Melford sisters hatch a plan to get their parents' attention and slowly becomes aware of the danger from a supernatural power unleashed by the girls and their friends from the boys boarding school run by the Melfords. </p>