Complex sentence: She prepares a meal for Mr Drew and takes it to his room, to find him reading aloud from the Bible passages of vengeance and she is startled to see that he has turned all the portraits of the women around to face the wall.
Split into simpler sentences: She prepares a meal for Mr Drew and takes it to his room. She is surprised to find him reading aloud from the Bible passages about vengeance, and she is also startled to see that he has turned all the portraits of the women around to face the wall.