Door into Mountain

The Door into Mountain was a huge wooden door built into the base of a steep mountain in Daventry, leading into the cave system behind it. The door was made of oak, with a gold lock. The mountain was part of the Great Mountains chain. The cave system included great stone staircases and walkways made from large wooden planks. The walkways were attached firmly to the cave's walls and floor, and/or suspended from the ceiling. The treacherous paths of the cave lead up to the Land of the Clouds, a plateau whose edges were surrounded by clouds and mist.

When Graham was sent on the quest to find the Three Treasures of Daventry he discovered the huge door. But as it was locked he went elsewhere. Later after guessing an old gnome's name, he received an alternative way up to the Land of the Clouds via a vine grown from magic beans. Once he had procurred the Magic Chest of Gold from a giant there, he travelled down through the mountain, through the door, and was back into the foothills of Daventry.

Years later Alexander journeyed accross the Great Mountains into Daventry, coming around the base of mountain near the door. The door had been shattered exposing the cave behind. Alexander climbed the stairs up to the cloudland in order to save his sister who was going to be sacrificed to a Three-headed dragon that was terrorizing the kingdom. After defeating the dragon he freed his sister, and both travelled back down the mountain into Daventry through the caves.

Behind the scenes
If Graham had failed to figure out the old gnome's name, he would have been given the key to the Door into Mountain instead of the magic beans.

The door has two ways of opening depending on the game. In original KQ1, the door swings open on large hinges. In the remake the door magically disappears, and then reappears after the person has passed through.