A tunnel with more than 100 years of history has been left to the inclemency of nature, leaving a corpse of a time where coal mining connected the coast with the national railway. It is a strange space in a small curve in the center of absolute darkness which is generated. Recording its imperishable sounds and percussing with machinic devices, the artists generate the opening to new sensations lacking heat and light but full of sounds, in an environment conquered by nature and embraced by time.