The devil is not coming alone rather he has an army of blood-sucking creatures with him. The story starts with the threats of war and in the middle, the war starts and continues till the end of the book. There is no stopping once the story is set in motion and the listener will not be allowed to rest till the last line gets narrated by Sophie Eastlake.
Blood-sucking creatures are more in number as compared to ordinary humans in this book because the author wanted to keep the story in that fictional world. War is won by the heroes in the end apparently but from the inside, they also lose a lot which can only be felt.