Any Librarian will say: truth is stranger than any fiction. Fulfilling orders from the Library, a mysterious organization searching for rare books, Irene travels around the world, or rather... worlds. Traveling to an alternative London, Irene and her assistant discover that the book they need is missing, and they are not the only ones hunting for it. A web of deadly intrigues, the unpredictable effects of magic, supernatural beings, secret societies - this is what Irene will have to face, hoping that she would finish this task in no time.