Complex sentence: The villagers, led by Müller, Jenny's father Mr. Schilt, and the Burgermeister, invade the castle and attack the Count and, after he kills a number of them, drive a wooden stake through his heart.
Split into simpler sentences: The villagers, led by Müller, Jenny's father Mr. Schilt, and the Burgermeister, invade the castle and attack the Count. After an intense battle, in which he kills a number of them, they succeed in driving a wooden stake through his heart.