( Herren-Surge )
A Basque spirit in the shape of a seven-headed snake who must be appeased by offerings of human beings (in some stories) but in all it is like a dragon even able to fly when the need arises. It is written that it is born again and again. It grows one head for each year. On the seventh year, as the new head forms it leaps into the sky and falls into the sea with a great roar and steam arises for it is like a from an ember.