Crystal of Neahtid

'When I was a child my parents told me of a crystal, it is here in Camelot'

Alvarr to Morgana The Crystal of Neahtid is an instrument of magic. The Crystal can look and the past, present and the future. It was picked from the Crystal Cave. Uther said that many sorcerers died trying to protect it. It was taken by Uther and put in the vaults underneath Camelot. The powerful warlocks Alvarr and Mordred persauded Morgana Pendragon, to get it so they could destroy Camelot and Kill Uther. Merlin saw a vision of Killgarrah destroying Camelot. Alvarr thought that Mordred could master the Crystal. It's whereabouts are unknown.