Thursday Missing

Hi. I picked this book up, One Of Our Thursdays Is Missing by Jasper Fforde. The title caugfht my interest. I normally don't read in the fantasy/ Scifi section of the library. I guess because I find it hard to read an area that makes little sense if any at all. I  tend to read in the area of possibility.
  The story concerns the seeking for the real Thursday. It takes place in the Bookworld and the real Thursday has dissapeared and all that is left is the written Thursday. It is told in first person and it is trhe written Thrsday we are seeing the story through. Chartacters around her are fading away because they are no longer read. She feels unneeeded and a shadow of the original. She  wants to find and restore the real Thursday.
  In the end, if I understand it correctly, she discovers she is not a copy.
   I guess maybe I don't get it. But that is okay. There are a lolt of other genres out there for me to read.