six-fingered man who had killed Inigo's father. When the man in black arrives, Inigo challenges him to a duel. The man in black wins the duel but leaves the Spaniard alive. Vizzini then orders Fezzik to kill the man in black. A flashback showed Fezzik as a lonely boy who was "accepted" by Vizzini. His conscience compelling him to fair play, Fezzik throws a rock as a warning to the man in black and challenges him to a wrestling match. The man in black accepts the challenge and chokes Fezzik until the giant blacks out. The man in black then catches up with Vizzini and proposes a Battle of the Wits, challenging Vizzini to guess which of two cups of wine is poisoned with iocane powder. They drink, and Vizzini dies. The man in black then explains to Buttercup that he had poisoned both cups, having built up an immunity to iocane powder beforehand. With Prince Humperdinck's rescue party in hot pursuit, the man in black flees with Buttercup. He taunts Buttercup, claiming that women cannot be trusted and that she must have felt nothing when her true love and sweetheart died. She shoves him into a gorge, yelling, "You can die, too, for all I care!" and hears him call, "As you wish!" from the bottom of the ravine. She realizes he is Westley and follows him down into the gorge, to find him battered but largely unhurt. They travel through the Fire Swamp to evade Humperdinck's party. At Buttercup's insistence, Westley tells Buttercup about his experience with the Dread Pirate Roberts and how he secretly became the latest in a line of men to use that identity. The Fire Swamp has many obstacles, such as Snow Sand and Rodents of Unusual Size (R.O.U.S., pronounced ). Westley and Buttercup successfully navigate the Fire Swamp, but they are captured by Prince Humperdinck and his cruel six-fingered assistant, Count Tyrone Rugen. Buttercup negotiates for Westley's release and returns with Humperdinck to the palace to await their wedding. Rugen follows Humperdinck's secret instructions not to release Westley, but to take him to his underground hunting arena, the "Zoo of Death". Here, Rugen tortures and weakens Westley with his life-sucking invention, The Machine. Meanwhile, Buttercup has nightmares regarding her marriage to the prince. She expresses her unhappiness to Humperdinck, who proposes that he send ships to locate Westley, but that if they fail