First off, I would like to say that this album, along with "Into the pandemonium" have held up very well throughout the years. CF's sophomore album was an incredibly bold and assertive vision in 1985. It's inclusion of symphonic elements including a timpani, French horns, a female opera singer, and even booming vocal effects (see "Circle of the tyrants" for a prime example of this) sounds hokey but is VERY effective. Don't believe me? Listen to "Innocence and wrath", "Dawn of Meggido", and "Necromantical screams". You would be amazed at how well these elements fit into the music being played. Speaking of the music, listen to those grinding riffs! I can say with confidence that Celtic frost was easily one of the heaviest bands in the Metal genre back in 1984/1985. Tom G. Warrior also had one of the most unique riffing styles in Death metal, Black metal, and Metal in general. The lyrics are a nice change of pace as well, dealing with epic H.P. Lovecraft themes. CF is one of the most influential and underappreciated bands in Metal and I highly recommend picking up their first three albums along with "Vanity/Nemesis" and Hellhammer's "Apocalyptic raids" poste haste. Damn those who ignore Celtic frost and refuse to see them as the honest, groundbreaking, highly influential asset to the Metal genre that they are.
Oh, and I'd also like to state that in the March 2004 issue of Guitar world magazine, Tom G. Warrior came in at number 32 on their prestigious "100 GREATEST HEAVY METAL GUITARISTS OF ALL TIME". Congratulations Tom!