Niko Sirkiä and Jori Sjöroos went on to form This Empty Flow, which marked a distinct stylistic departure from Thergothon.
The project began as somewhat of a shoegaze band, taking cues from groups like Slowdive, but ended up as more in the area of trip hop.
A first demo recorded afterwards titled Dancing in the Realm of Shades was never officially released and the band made a new attempt in November 1991.
This demo, titled Fhtagn nagh Yog-Sothoth, was released the same year in a limited edition of 600 copies and was licensed to the US and Poland.
In the spring of 1992, the band gave two concerts in or near Turku, where they played an extremely slow version of Venom's "In League with Satan".
[3] Cosmic horror author H. P. Lovecraft remained a prevalent influence throughout their discography, as evidenced by titles such as Fhtagn nagh Yog-Sothoth and The Unknown Kadath in the Cold Waste.