This story is about a family that moves into a house that is misteryous .Lots of misterys go on in this book and the main people in this book is to twins ,mother,and sister of the twins .One twin is smart and sometime can be aunohing ,the auther one is lets just say the oppsite.Which the mother has to trougel with .Last but sadley last but not least the big sister she is something I can not discrabe.They do not get along very well but as the story goes on they find. Mistacule creaturs that is looking for a book not just any book but an .Book that tells you about certurs but which thiis one book who whould think it. Will chause so much things happing one twin will try to keep the book safe.