They came from four cities to the north of Ireland—Falias, Gorias, Murias and Finias—where they acquired their magical skills and attributes. According to Lebor Gabála Érenn, they came to Ireland "in dark clouds" and "landed on the mountains of [the] Conmaicne Rein in Connachta", otherwise Sliabh an Iarainn, "and they brought a darkness over the sun for three days and three nights". They immediately burnt the ships "so that they should not think of retreating to them; and the smoke and the mist that came from the vessels filled the neighboring land and air.