Their promises they'd kept.
на простоплеере небольшая ошибка - песня называется "The Prydwen sails again"
Lyric
Prydwen - name of King Arthur's ship.
Caer Sidi (or Caer Siddi or Caer Sidydd) is the name of a legendary otherworld fortress mentioned in two Middle Welsh mythological poems in the Book of Taliesin.
Some attempts have been made to give the fortress a physical location, e.g. as the island of Grassholm off the coast of Pembrokeshire, but Caer Sidi is more likely to belong to the class of otherworldly forts and islands so prevalent in Celtic mythology.
The precise meaning of the name 'Sidi' in Caer Sidi is problematic (caer means "fort", "fortress", "stronghold"). One possible meaning of Caer Sidi is the 'turning fortress', but it is more likely to mean the 'Fortress of the Zodiac', as sidydd means "Zodiac" in modern Welsh.
In "Dark Age of Camelot" Caer Sidi is prison to countless restless souls, souls trapped there until the day when Apocalypse brings his wrath down upon the land of the living.