A battle culminates in Macduff's confrontation with Macbeth, who kills Younger Siward in combat. The Rebel forces overwhelm his army and castle. Macbeth offers that he has no purpose to panic Macduff, for he cannot be killed by any guy born of girl. Macduff declares that he was "from his mom's womb / Premature ripp'd" (V.” with the help of which