The Ground Below (John Murphy)

Zaria Kane was six when her world shattered. She watched her mother die screaming during childbirth, then stood frozen as guards, acting on her father's orders, ripped the newborn from her arms and killed him in front of her. He would do anything to save his reputation, even when it meant murdering his own son. Zaria never forgave him. She buried the pain deep, finding a flicker of warmth years later in Jasper and Monty, two boys as lost as she was. Jasper, especially, became the baby she never got to protect.

Down on the ground, survival is brutal, but she's used to cruelty. She expects monsters. What she doesn't expect is the boy with a sharp mouth, haunted eyes, and a loneliness that mirrors her own. John Murphy is everything she should stay away from, and the only one who sees the storm behind her silence. And if the ground wants her family, it'll have to tear them from her cold, bloodied hands.