[3] Lydia left Blackthorn in 2007 after giving birth to a baby, to be replaced by Elvira Alchemida (guitars, keyboards, growling).
[4][5] In 2010 the band, now with Varaska (Alexandra Archangelskaya) on drums, Greta (Tatyana Grevizirskaya) on bass and Less (Elena Lesnykh, ex-Shallow Rivers) on violin,[2] entered the Magna Opera Studios to start to record their second album.
The main lyrical idea behind the album was "an attempt to describe rituals of an ancient magic Codex Archaos," according to Aina.
[6][7] Witch Cult Ternion, a concept album, telling the "story of ancient triple goddesses, but interpret[ing] it in its own way, enfleshing the vision as three evil witch-sisters, reigning over the world with their dark powers,"[8] came out in December 2015.
It drew comparisons with the early works of Cradle of Filth, as well as Epica, Dimmu Borgir and Lacrimosa,[9] and "has finally brought the band into the Premiere league of Russian heavy music scene," according to one reviewer.