"Long ago, a dark tribe invaded Hyrule. They were defeated and imprisoned within the mirror. The tribe's mirror prison was then secreted away and hidden in the forest temple to sever its connection to this world."

— White Maiden

The Dark Tribe is a group mentioned in The Legend of Zelda: Four Swords Adventures. They invaded Hyrule long ago, but were defeated and sealed inside the Dark Mirror. The mirror was then hidden away in a temple in the forest.