The audio-essay I recently produced in collaboration with Justin Barton, On Vanishing Land, was in part a disquisition on the eerie.  For us, the eerie was defined by problems of agency. In the deserted spaces which often trigger the feeling of the eerie, we are forced to ask if there is an agent present, unseen but watching us. If an agent is present, what is its nature? Is it hostile, friendly, or merely indifferent? The feeling of the eerie is also likely to be provoked by the contemplation of the relics left behind by agents who have long departed. The statues on Easter Island, the stone circle at Avebury – these confront us with gaps in our knowledge. What kind of agents built these constructions, and what (now irretrievably lost) symbolic regime made sense of them?