Celtic Frost has reissued its four seminal Noise Records albums on deluxe hardback CD and 180-gram double album sets, complete with posters and 10-inch spine bound book. All tracks have been fully remastered and these releases contain previously unreleased and rare tracks. These are the definitive Celtic Frost reissues. Celtic Frost's second album, To Mega Therion, was released in 1985 and showcased an ominous pall of doom and gloom, enmeshed in a sound both primitive yet also Wagnerian in its vast scope. This reissue includes the Emperor's Return EP as well as a remix of "Visual Aggression.