Little Monsters by Kara Thomas

Kacey is the new girl in Broken Falls. When she moved in with her father, she stepped into a brand-new life. A life with a stepbrother, a stepmother, and strangest of all, an adoring younger half sister.

Kacey’s new life is eerily charming compared with the wild highs and lows of the old one she lived with her volatile mother. And everyone is so nice in Broken Falls—she’s even been welcomed into a tight new circle of friends. Bailey and Jade invite her to do everything with them… Read more.