Soul eaters. Paternell van Arsdale

Alice was only seven years old, when she first saw the Devaters of Souls - twin sisters abandoned by her father and turned into monsters who feed on human fears. In the villages of the edges of the bids whisper, as if sisters are a fascination of the beast, but Alice feels a strange connection with them. And when trouble comes, the girl goes on a journey through the most dense thickets of the dark forest and her own soul.