Original sentence: It is also the first album to have extracted singles from, "A Past and Future Secret" and "Bright Eyes".Remastered and re-released on 15 June 2007, with bonus tracks and videos.The atmosphere on this album is more serious, and the music on some songs is darker, in comparison to their earlier works, such as Battalions of Fear, which completely had a happy theme.This album also marks the first since their debut that Kai Hansen (Gamma Ray) had not guested on vocals or guitar
Edited sentence: It is also their first album which resulted in the release of singles, "A Past and Future Secret" and "Bright Eyes".It was remastered and re-released on 15 June 2007, with bonus tracks and videos.The atmosphere of this album is darker in comparison to their earlier works, such as Battalions of Fear, which had a relatively happy tone.This album also marks the first since their debut in which Kai Hansen (Gamma Ray) did not guest on vocals or guitar