Complex sentence: The next day, partisans arrive at his house and take Florya with them, to the dismay of Florya's mother who fears that the loss of her son, like his father before him, will lessen her and her daughters' chances of survival.
Split into simpler sentences: The next day, partisans arrive at his house and take Florya with them, to the dismay of Florya's mother. She fears that the loss of her son, like his father before him, will lessen her and her daughters' chances of survival.