In Slavonic legend the king-serpent plays a large part, and innumerable stories relate the glories of some peasant child that, managing to secure a tiny gem from his crown, while the reptilian monarch was bathing, found the jewel daily surrounded with new treasures. This is the same serpent which, gathering up the myths of lightning and of comets, flies through many German legends as the red Drake, Kolbuk, Alp, or Alberflecke, dropping gold when it is red, corn if blue, and yielding vast services and powers to those who can magically master it. The harmless serpents of Germany were universally invested with agathodemonic functions, though they still bear the name that relates them to Ahi, viz., unken. Of these household-snakes Grimm and Simrock give much information. It is said that in fields and houses they approach solitary children and drink milk from the dish with them. On their heads they wear golden crowns, which they lay down before drinking, and sometimes forget when they retire. They watch over children in the cradle, and point out to their favourites where treasures are hidden. To kill them brings misfortune. If the parents surprise the snake with the child and kill it, the child wastes away. Once the snake crept into the mouth of a pregnant woman, and when the child was born the snake was found closely coiled around its neck, and could only be untwined by a milk-bath; but it never left the child's side, ate and slept with it, and never did it harm. If such serpents left a house or farm, prosperity went with them. In some regions it is said a male and female snake appear whenever the master or mistress of the house is about to die, and the legends of the Unken sometimes relapse into the original fear out of which they grew. Indeed, their vengeance is everywhere much dreaded, while their gratitude, especially for milk, is as imperishable as might be expected from their ancestor's quarrel with Indra about the stolen cows. In the Gesta Romanorum it is related that a milkmaid was regularly approached at milking-time by a large snake to which she gave milk. The maid having left her place, her successor found on the milking-stool a golden crown, on which was inscribed 'In Gratitude.' The crown was sent to the milkmaid who had gone, but from that time the snake was never seen again. [237]