bad or good

This book contains many killing cases. A very determined girl head on an adventure to kill whoever killed her family as in her mom , dad and brother. she met other people who wants to also take revenge on the same person who killed her dad and he geos by the name boss, but boss, changed his name so that he wouldn't get recognized he also changed his daughters name too, well during that everything became a little easy as the boss's daughter Suzie was admitted in the same school as Sadie. She killed some of her friends and on necessary people she did not succeeded in because of a girl name Charlotte who will come come in the story. And the shocking truth will be revealed many more things will happen read the story to know more.