Arnatt was fascinated with works of art that are created in the natural landscape but leave no trace of their presence behind. ‘The continual reference to the disappearance of the art object suggested to me the eventual disappearance of the artist himself’, he wrote. This sequence of photographs was broadcast on German television in October 1969. One photo was shown each day, for about two seconds, sometimes interrupting whatever programme was being shown at peak viewing time. They were neither announced nor explained – viewers had to make what sense of them they could.