出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2010/11/12 08:16 UTC 版)
A bluecap or blue cap is a mythical fairy or ghost in English folklore. They inhabit mines and appear as small blue flames. If miners treat them with respect, the bluecaps lead them to rich deposits of minerals. Like knockers or kobolds, bluecaps can also forewarn miners of cave-ins. They are mostly associated with the Anglo-Scottish borders.