Realm of the Dead

The Isle of the Dead was where all the living from areas of the Land of the Green Isles go when they die, according to Green Islander's legends. Ruled by the Lord of the Dead, Lord Samhain. It is a place not of the world, and yet it is a physical island located within the Land of the green isles. Its cold black mountains can sometimes be seen from the shores of the other islands.

Alexander flies there on the back of Night Mare in order to rescue King Caliphim and Queen Allaria, as the map was powerless to take him there. To bring them back to the Land of the Living, he challenges Samhain.

The Land of the Dead may also be known as Hades, thought it may also be a location in Daventry's legends, as alexander thought of omelettes of Hades when he cracked the rotten egg and poured the contents onto a oak ember to cast a spell. However its also possible that River Styx is connected to Hades as well as the Land of the Dead across the multiverse.

There may be a connection to the Dimension of Death. It is unclear if the Dimension of Death leads the dead to the Isle of the Dead after they are judged, or if leads to another underworld of its own. Though there is implication that a heavenly realm exists as one of the possible afterlifes. The Dimension of Death's River of the Dead may be connected to the River Styx.