Kobolds are household spirits from northern European traditions. They are said to have a grey or greenish complexion. They dress in red or sometimes in shades of green. These beings inhabit trees that are felled to make wooden dolls. Thus, anyone who receives a carved wooden figure must take great care, as a kobold may be found inside it and will take over the house without further ado.
When a kobold inhabits a house, it does so in a dark and silent corner. It prefers spots near the fire. Like so many other goblins, they tend to play tricks, though they may also help with domestic tasks.