Don't mess with the yokels. While they may be missing teeth and walk with a limp, all that inbreeding just may have given them superpowers that can crush your head with a blink. You don't want to take that chance.
I don't give books star ratings; I give them bite ratings. This is a bite. A book can get up to five of these evil-looking chompers, including half bites.
You can attribute your own wording to the ratings. Five's the best, three's decent, one and under isn't worth the gas to go to the library. I'll leave it to you to fill in the blanks.