All I can say is...
Don't be put off by the "Metal" tag... the album has not an electronic instrument in sight, yet still manages to pull of this weird fusion of Celtic folk, metal, prog-rock and even a bit of rap on one track! Almost all the lyrics are in the ancient and extinct Helvetii Gaulish language, giving a very Pagan, spiritual feel that haunts and teases some memory deep in the DNA.
I cannot praise this album highly enough. This is a work of genius.