Tonight I am on the Island of Portland for the first time (for the exlab project), having spent today meeting all the other artists and project partners. I arrived in the dark, driving over the thin strip of beach that links the island to the mainland, and then up through masses of naval housing (Portland harbour used to be naval). It was only three quarters of the way down the island that the housing estates stopped and the open spaces of Portland Bill emerged. Mist coming in off the sea, damp air, overhead an owl was lit up a ghostly white by the spotlights used to illuminate the old lighthouse, now the Portland Bird Observatory, where I am staying. A few moments later little screams in the field behind me: dead mouse.