Mourning Sun, released in November 2005, is the fifth studio album (although it is fourth 'official' studio album) by Fields of the Nephilim. Vocalist Carl McCoy is the only original band member to be featured on this album. McCoy along with Carter (original Nefilim collaborator) spent eighteen months recording new demos in McCoy's mobile recording studio, dubbed "The Ice Cage" which took them to various places, including Norway. According to McCoy, Ice Cage sessions generated enough material for a double album, yet it was ultimately decided to narrow the track listing down to one disc. While McCoy has acknowledged that additional musicians were recruited for the writing and recording process, he has not disclosed their identities nor admitted whether they are included in the band's touring lineup; the only identified persons involved in the recording process to date are John "Capachino" Carter (a bass player who also worked with McCoy on Zoon demos in the beginning of 1990's.) and McCoy's daughters Scarlett and Eden on backing vocals for the title track. McCoy has admitted to having applied preprogrammed drums on some of the tracks, stressing at the same time that most of the drum parts "were created by a real human being - Carter."
^"The people who worked on the demos of "Mourning Sun" are the same musicians who played on the final recordings. The tracks were very long at the beginning, and required important work on their structures and arrangements. In themselves, these things could be defended, no problem at all, but to integrate them into an album would have been too complicated." In D-Side, Issue 31, November–December 2005, interviewed by Emmanuel Hennequin