Even by the usually robust, dystopian standards of Berceuse Heroique, Serpent's Promise is fiendishly raw. It comes from Australian producer Eugene Ward, best known as Dro Carey and Tuff Sherm, breaking out his lesser used PMM guise. The result is a trio of raw, fuzzy, distorted and, in truth, nightmarish techno jams that are not for the faint hearted. The title track comes across like the soundtrack to a modern-day pagan ritually played out in a dark, subterranean car-park - all bleak, concrete-clad beats, paranoid electro motifs and in-your-face distortion. There's an Autechre-like, out-there electro shuffle to "Growth Hacking", while "AACF1" slows the paced to a smacked-out crawl, layering elastic electronics over razor-sharp shards of rhythm. The whole EP is uncompromising, but better for it.