Aranjamente, producator, percutie, claviaturi: Vangelis
Voce: Jon Anderson
Voce: The Choirs
Voce: English Chamber Choir
Voce: Vana Veroutis
Voce: Vana Beroutis
Dirijor: Guy Protheroe
Inginer de sunet: Alan Lucas
Design: Geoff Halpin
Concept coperta: Mike Doud
Fotografia: Paul Wakefield

Those used to Vangelis' later and lighter synthesized outings may not be quite ready for this dark, thundering album. While it did provide us with the theme music for the TV series Cosmos and bring Jon Anderson into partnership with Vangelis (following an abortive approach to Vangelis joining Yes) on "So Long Ago, So Clear", it also served up massed Gothic choirs and a musical depiction of all the tortures of the damned, with an impressive amount of string-driven shrieking. Even so, it's a brilliant piece of work that should not be absent from any Vangelis collection.