On the night of 7–8 February 1855 and one or two later nights, after a heavy snowfall, a series of hoof-like marks appeared in the snow. These footprints, most of which measured around four inches long, three inches across, between eight and sixteen inches apart and mostly in a single file, were reported from over thirty locations across Devon and a couple in Dorset. It was estimated that the total distance of the tracks amounted to between 40 and 100 miles. Houses, rivers, haystacks and other obstacles were travelled straight over, and footprints appeared on the tops of snow-covered roofs and high walls which lay in the footprints' path, as well as leading up to and exiting various drain pipes of as small as a four-inch diameter.The area in which the prints appeared extended from Exmouth, up to Topsham, and across the Exe Estuary to Dawlish and Teignmouth. R.H. Busk, in an article published in Notes and Queries in 1890, stated that footprints also appeared further afield, as far south as Totnes and Torquay, and that there were other reports of the prints as far away as Weymouth (Dorset) and even Lincolnshire.
There were also attendant rumours about sightings of a "devil-like figure" in the Devon area during the scare. Many townspeople armed themselves and attempted to track down the beast responsible, without success.