He was the offspring of Loki and the giantess Angurboda, who bore two other children, Midgard the serpent, and Hel the goddess of death.
The god Herindal and Loki once fought a battle in the shapes of seals.
Loki thereupon went back to the stream, where Andvari in the form of a pike was guarding a great treasure, caught him in a net, and forced him to surrender his hoard.
But the piled-up gold left one hair exposed; in order to cover it Loki returned to Andvari and forced him to surrender a magic ring which had the virtue of breeding gold.
(b) The Dramatic Poems: - Flyting of Loki, the For Skirnis, the Harbareslioo and several fragments, all one man's work, to whose school belong, probably, the Lay underlying the story of Ivar's death in Skioldunga Saga.