Marrow by Tarryn Fisher

Margo lives in a cursed house with her estranged mother in a place called The Bone. She's quiet and keeps to herself, but she still manages to form a friendship with Judah Grant. Things change both in the neighborhood and in Margo when a local seven-year-old goes missing. With Judah's help, they search to uncover what happened to her but Margo can feel things shifting inside of her and she wants all the evil punished.