Realm of Darkness

The Realm of Darkness is the second half of the Kingdom Hearts universe and is made up of Darkness. Kingdom Hearts and the World That Never Was are found here. As with the Realm of Light, this realm has a Keyblade which chose King Mickey as it's wielder.

Dark Corridor
The Dark Corridoor is a pathway in the realm of darkness that is used by Namine, Riku, and Organization XIII to travel between worlds.

Finding the Box
After being saved from Saïx's Heartless by Maleficent in Hollow Bastion, Sora, Donald, and Goofy are transported to the Realm of Darkness, where they encounter a man in a black cloak, later revealed to be Riku. Riku leaves a box with a picture of Hayner, Pence, Olette, and Roxas and a bar of sea-salt ice cream. This is the first time that Sora, Donald, and Goofy are able to make their way to the Realm of Darkness in Kingdom Hearts II.