The One Ring

three rings for the elven kings under the sky
seven for the dwarf lords in their halls of stone
nine for the mortal men doomed to die
one for the dark lord on his dark throne
one ring to rule them all, one ring to find them, and in the darkness bind them!
in the land of mordor where shadows lie.
the one ring was forged by the dark lord sauron to rule all of middle earth.

names of the three elven rings:

nenya was given to galadriel
narya to cirdan. later given to gandalf.
vilya given to gil-galad. later he gave it to elrond.
in tolkienish mythology, the one master controlling ring, fashioned by the dark lord suron in secret deep in the mines of moria. it can only be destroyed by casting it into the fires of mount doom in the evil land of mordor. it is, by frodo, son of drogo, heir of bilbo baggins, who inherited bilbo’s estate of bag end when he left for the elven stronghold of rivendell on his 111st birthday. the one ring has a good amount of the power of the dark one and corrupts those who hold onto it for too long, though it has a mind of its own. it was originally cut from the hand of sauron by isildur, king of gondor, who kept it instead of casting it into the fires from where it came. it then came to the hands of smaegol, later to be known as gollum. gollum retreated into a cave in the misty mountains and hid there, allowing the ring to turn him to the control of sauron. bilbo baggins found the ring, and kept it, after “winning” it from gollum in a riddle contest. the ring then went with bilbo back to bag end, where he kept it for many years, until his heir frodo inherited it, and began the quest to destroy it, thus becoming the ringbearer. he eventually did, destroying the ring for all eternity.below it the full text of the elven verse written on the one ring, the ring of power (as produced by the chronicles of the lord of the rings, printed in 1965)
three rings for the elven-kings under the sky,
seven for the dwarf-lords in their halls of stone,
nine for mortal men doomed to die,
one for the dark lord on his dark throne.
in the land of mordor where the shadows lie.
one ring to rule them all, one ring to find them,
one ring to bring them all and in the darkness bind them
in the land of mordor where the shadows lie.

only the lines “one ring to rule them all, one ring to find them/one ring to bring them all and in the darkness bind them” are inscribed in fire-writing on the ring (fire-writing being writing that only appears when something is cast into a fire)