The sophomore Kostnatení album ÚPAL ("heatstroke") is a story of the human condition as a function of heat. The rise of consciousness in warm-blooded creatures has given rise to impossibly dense, illogical webs of thought that can completely divorce our lived experience from the physical world around us. Anxiety, fixations, and hallucinations can appear without material basis, setting our overactive neurons on fire. To bring this vivid scene to life, Kostnatení has become both more meditative and more chaotic, introducing influences from sources as varied as African folk and noise rock into its technical black metal basis. Evoking both the searing rays of the desert sun and the melting of one's sanity, ÚPAL walks the fine line between burning up and burning out.