'Watch catastrophe unfurl from the shoreline'. The Thetis was a submarine that sank in on its trials out of Liverpool in 1939. There were 103 men on board. By releasing water and petrol, the workmen managed to bring the submarine to the water's surface where it stayed for three days, where loved ones watched from the shore, before the Thetis sank once more to the bottom of the ocean. 99 men perished. Listen to the writer and performer Alice Colquhoun's thoughtful and musical piece that discusses this tragic historical event and its engagement with the symptoms of war and its evisceration of surfaces.