Complex sentence: Though the girl appears unharmed, the townspeople surmise that she has been bewitched to forget what happened to her, and drag Curwen out to a tree where they intend to burn him.
Split into simpler sentences: Though the girl appears unharmed, the townspeople surmise that she has been bewitched to forget what happened to her. They drag Curwen out to a tree where they intend to burn him.