Obscure Sphinx is a female-fronted metal band formed in Warsaw, in 2008. Their music is situated somewhere near post-metal, but they enrich it with influence from doom metal, post-rock and progressive metal. They merge sonic spaces and electronic samples with the crushing combo of 8-string guitars and 6-string bass rhythms. All of this is flavored by the unique voice of the vocalist. Since now they played with bands such as Amon Amarth, Coroner, Crippled Black Phoenix, Rosetta, City Of Ships, Talbot, My Riot, At The Soundawn, Ketha and many more. Beside that Obscure Sphinx took part in Tides From Nebula's Polish Tour and Blindead's Affliction Tour 2011.

Their debut album called Anaesthetic Inhalation Ritual was released on 15th April, 2011 and had a great response from listeners, as well as professional music critics. It was recorded at Sound Division Studio & Progresja Studio and mixed & mastered by Kuba Mańkowski (Blindead, Behemoth) in Sounds Great Promotion Studio in Gdynia.

Great response of AIR lead to many distinctions in 2011/2012 - the band was awarded second place in "album of the year" competition on wp.pl website, 11th place in Antyradio's "Płyta Rocku", distinctions in "Płyta Roku 2011 - Metal" on T-Mobile Music and "Best Post-metal Album" according to MetalStorm.net.

The band participated in a series of big festivals in 2012 both in Poland and abroad. They played at Summer Breeze where they won the "New Blood Award", on Metalfest, Brutal Assault and OFF Festival.