One does not simply walk into Mordor. That is, at least, what Frodo Baggins was told. However, to thwart the Dark Lord, he will need to walk right in and cast the venomous Ring of Power, the One Ring to Rule Them All into the fires of Mount Doom.
Long ago, in Eregion, the Elves forged the Rings of Power. Three they kept for themselves, to safeguard their havens. Seven they gave unto the Dwarves, so that they could use that power to mine the world to their will. Nine, oh, those nine they trusted into the hands of the Kings of Men, thinking that they’d be safe, that they’d be worth trusting. They believed that there were no more Rings. They believed that the genius who gave them the direction to create the Rings, was one of them.