Teen Novels The Book of Nonsense (Forbidden Books, Vol. I) The Book of Secrets (Forbidden Books, Vol. II) The Book of Knowledge (Forbidden Books, Vol. III) The Book of Maps (Forbidden Books, Vol. IV) The Book of All Things (Forbidden Books, Vol. V) The Book of Names (Forbidden Books, Vol. VI) The Book of Letters (Forbidden Books, Vol. VII)
