Kobolds

Kobolds originate from germanic folklore in the 1900's where they are depicted much like the hobgoblins, brownies, and house elves from the U.K. They are described as being invisible most of the time. They sometimes take the form of a human, animal, flame, or a candle, but their main forms were drawn as ugly humanoids the size of children. Kobolds were said to be spotted in homes, mines, and on ships, all helping people people with small tasks. This myth was most likely to have been influenced by the greek myth Kobalos, which were almost completely the same. In d&d, Kobolds are extremely different, being described as small reptilian humanoids with draconic ancestry. They dig long tunnels and lair in groups underground worshiping their lost god Kurtulmak.