Once ancient king of Men, the Ringwraiths were lured to Sauron's service by
the gift of Rings of Power. These the Dark Lord used to enslave them, turning
them in to withered, disembodied wraiths of the former selves. They became
Ringwraiths, shadowy servants of Sauron who could only be seen in their true
twilight forms by one wearing a Ring of Power. Greatest of all of them was the
Witch-King of Angmar, who wielded his weapons of fear and despair with as much
skill as he would a blade.