Cirith Ungol, the dark crevice in the mountain at the top of the steep staircase, was originally protected by Isildur and the men of Gondor, where they built a tower to prevent evil pouring out of Mordor into the fields of Ithillien. During the time in which Isildur was succumbing to the allure of the ring after the Battle of the Last Alliance, Shelob the Spider demon inhabited the cave and filled it with her malice. The tower fell into the hands of the enemy, and all manner of evil creatures came to reside there.
During the 2001 film adaptation of Return of the King by Peter Jackson, the audience sees Gollum lead Sam and Frodo up the steep staircase towards the evil crevice. The film uses the device of Lembas bread, scattered craftily by Gollum to frame Sam for greed, in order to split the two companions up. Frodo ventures forth into the spider's home alone, and Sam travels back down the stairs, only to find the remnants of the elven food, and realizes the peril of his dear friend. He rushes back up the cliff to defend Frodo, and there he finds the glowing sword Sting which was gifted by Bilbo, and the light of Elendil, which was gifted by Galadriel. Using the two lights, he is able to find his way through the darkness and defeat Shelob in battle. However, he fears it is too late, as he finds Frodo paralyzed by the spider’s sting. Fearing him dead, Sam removes the ring and the chain it is carried on, and hides just in time to see Frodo carried off by orcs, up into the tower.
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The orcs converse as they move the body, and it is revealed that Frodo is still alive, only stunned. Sam must then make his way into the tower in order to save his
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