Nightmare is the oldest and wisest dragon, his personality is serious and cold, he is generally very strict and cruel. Dream is the opposite of nightmare, being very merciful and kind to other living beings, both are brothers and are very close to each other. They live in a castle on top of the highest mountain in the world that is surrounded by oceans and seas that are plagued by deadly creatures of the deep. The castle is black made with bricks and concrete made from volcanic rocks