Tales about Kobolds imply the existence of Monobolds
And I am really scared about those creatures. Kobolds are most often seen alone and presumably searching for their matching partner to unleash their full power in cooperating.
But Monobolds probably have their full potential even when working alone. so be aware of some creature looking like a single Kobold!
Legends tell of three major types of kobolds. Most commonly, the creatures are household spirits of ambivalent nature; while they sometimes perform domestic chores, they play malicious tricks if insulted or neglected. Famous kobolds of this type include King Goldemar, Heinzelmann, and Hödekin. In some regions, kobolds are known by local names, such as the Galgenmännlein of southern Germany and the Heinzelmännchen of Cologne. Another type of kobold haunts underground places, such as mines. A third kind of kobold, the Klabautermann, lives aboard ships and helps sailors.