In Tolkien's Middle-earth high fantasy writings, Helm's Deep was a large valley in the north-western Ered Nimrais
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Inside the keep there were stables and an armoury, as well as a great hall in the rear which was dug out of the mountainside. There also was a great tower (the Hornburg) the top of which consisted of the great horn of Helm Hammerhand.
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In the Two Towers, King Théoden said that
