Physik by Angie Sage

Physik : Paperback : HarperCollins Publishers Inc : 9780060577391 : 0060577398 : 17 Jun 2009 : When Septimus Heap's father unseals a forgotten room in the palace, he releases the ghost of a queen that lived 500 years earlier who is as awful in death as she was in life. It's up to Septimus to stop her, in this third installment of the heart-stopping series.