Editing Celtic Frost (section)

===Stylistic changes, internal struggles, and first breakup (1987–1993)===
[[File:Celtic frost into pandemonium cover.jpg|thumb|170px|''Into the Pandemonium'' was Celtic Frost’s second full-length album. The album employs a variety of musical styles.]]
In 1987, Celtic Frost released their second full-length studio album, ''[[Into the Pandemonium]]''. The album is noticeably eclectic compared to the band's previous works, featuring love songs, [[industrial music|industrial]] rhythmic pieces, symphonic and operatic influences, female vocal parts, and an unlikely cover of [[Wall of Voodoo]]'s "[[Mexican Radio]]."

The album is often regarded as a unique departure from the band's earlier material and helped solidify their description as an [[avant-garde metal|avant-garde]] band. It marks a shift away from the heavier, more direct style found on the band's previous releases, ''[[Morbid Tales]]'' and ''[[To Mega Therion (album)|To Mega Therion]]'', although these albums also contained elements of experimentation and symphonic collaboration. ''Into the Pandemonium'' blends a [[classic metal|heavy metal]] foundation with elements of [[industrial music|industrial]] and [[gothic rock]], and even includes an [[electronic body music]]-inspired rhythm, particularly evident in the song "One in Their Pride." Despite this stylistic evolution, the album retains sparse elements of extreme metal, noticeable in Fischer's vocals and guitar work.

During a North American tour, the band added a second guitarist, Ron Marks. However, shortly thereafter, financial difficulties, along with tensions between band members and their record label, led to a brief dissolution of the group. Six months later, Warrior reformed the band, with Stephen Priestly returning on drums, Oliver Amberg on guitars, and Curt Victor Bryant on bass. This lineup recorded the studio album ''[[Cold Lake (album)|Cold Lake]]'', released in September 1988 by Noise Records. Despite being marketed to capitalize on the mass appeal of glam metal, the album was poorly received, failing to resonate with fans of the band's extreme style.

Afterward, Bryant dismissed Amberg, leading to the return of former live guitarist Ron Marks for the recording of ''[[Vanity/Nemesis]]'' in 1990. Another significant change was the return of early bassist [[Martin Eric Ain]]. Despite these changes, Celtic Frost's reputation never fully recovered from the backlash caused by ''Cold Lake''. In 1992, the band's label released a collection of rare recordings titled ''[[Parched with Thirst Am I and Dying]]'', the title of which is derived from an ancient Roman prayer.<ref name=allmusic2 >Raggett, Ned. [http://www.allmusic.com/album/parched-with-thirst-am-i-and-dying-mw0000274947 "Parched with Thirst Am I and Dying – Celtic Frost"] {{Webarchive|url=https://web.archive.org/web/20130201173930/http://www.allmusic.com/album/parched-with-thirst-am-i-and-dying-mw0000274947 |date=1 February 2013 }}. ''AllMusic.com''. Retrieved 26 September 2011.</ref> This compilation featured unreleased material, re-recorded versions of older songs, and studio session tracks.<ref name=allmusic2/>

A final proposed album titled ''Under Apollyon's Sun'' was never completed, although Fischer would later co-found a new group called [[Apollyon Sun]].