Board Thread:General Discussion/@comment-26210095-20160404001701/@comment-25344655-20160405010853

The constructions of Dwarves had properties which might be seen as magical. An example could be the Doors of Durin which opened by themselves upon saying the word mellon, without visible machinery or other assistance. The magical appearance could be the technology of Dwarven ingenuity and craftsmanship. The Elven Door was created by the Dwarven craftsman Narvi and inscribed by the Elf-lordCelebrimbor with letters and signs fashioned in ithildin.[20]

Another Dwarven door is seen in The Hobbit. The Back Door of the Lonely Mountain was a hidden, seamless door which had a keyhole that would only be revealed on Durin's Day. The key lines that may infer an enchantment on the door are: ''A gleam of light came straight through the opening into the bay and fell on the smooth rock-face. The old thrush. . . gave a sudden trill. There was a loud crack. A flake of rock split from the wall and fell. A hole appeared suddenly about three feet from the ground.''