This 436-page book continues after book 6. The Spook’s house had been looted and burned down by enemy soldiers. All the books in the Spook’s library, save one, were burned in a big bonfire. The boggart had left, and the witches that were trapped in the pits escaped. Thomas, Alice, and the Spook flee to the island of Mona across the ocean and faces an old enemy who has grown a lot stronger. Can the three of them vanquish the great evil that has grown? I would rate this book 4.5 stars out of 5 because it is full of action and heart-stopping moments throughout it.