If that new chick in school gets all kissy with you and whispers in your ear, "you're all mine," chances are her brother putting dead cats in your female friend's locker is the least of your worries.
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.