A sea giantess, of the same type as the mother of Grendel in Beowulf, who was described as 'a monster of a woman, she mourned her fate, she who had to live in the terrible lake, the cold water streams, after Cain slew his own brother.' After her son's battle she had her revenge. Beowulf went in search of her and he saw 'many serpents in the water, strange sea dragons swimming in the lake and also water demons lying on cliff-ledges, monsters and serpents of the same kind as often in the morning molest ships on the sail-road'. Beowulf dived into the lake, where he found Grendel's mother. After being attacked by the sea monsters, he engaged them in a fierce battle at the bottom of the lake, eventually emerging victorious.