I hate sad endings. Happy endings are a must for me. 
 So what happens when a book has, practically, NO ending? 
 It's pissing off!!!!!!!!! 
 And that's because the book's good, you just have to know the ending. You can just see a good one coming. 
 So you can guess my surprise and shock when I flipped the page and read ..."if you like this book, please...." out of nowhere when the last page should have NOT been what it is. 
 But with a book like this, I doubt that this book could ever have a satiable ending. With the turn of every page, the story gets better and better, more exciting, more captivating. Nobody would want to put down the book EVER, if possible. 
 I would give this book 3.5 stars, since in my rulebook of awarding stars to books, a good book MUST have a happy ending (emphasis on the "ending"). This book didn't have one. But merely 3 stars is too harsh for a book that i didn't put down once i picked it up. 
 So 4 stars it is.