Book of doors

Cassie Andrews works in a bookstore in New York City and lives a low-key, ordinary life. Until the day one of her favorite customers – a lonely but charming old man – dies near her and leaves her a gift.
It is a book – an extraordinary book, full of strange texts and mysterious drawings. And on the first page is a handwritten note for Cassie, saying that it' s the Book of Doors and that any door can be any door.
Cassie soon discovers that the Book of Doors is a special book that grants its owner unusual powers. Soon, she and her best friend Izzy begin to explore what the Book of Doors can do. However, the Book of Doors is not the only magical book in the world. There are other books, who can do amazing things, but also terrible things, when used by dangerous and ruthless individuals, who desire most of all, What Cassie owns now, and they are willing to kill for it.
Suddenly, Cassie and Izzy must face violence and danger, and the only one who can help them is a certain Drummond Fox, a gaunt foreign man with a Scottish accent. A man fleeing his demons and having his own secret library of magical books, he has already hidden them in the shadows for safety. Because somewhere out there lurks a nameless evil that is after them all.