than by force that Swipdag is successful here.

The third journey of Swipdag is undertaken on Frey's behalf; he goes
under the name of Scirner to woo giant Gymer's daughter Gerth for his
brother-in-law, buying her with the sword that he himself had paid to
Frey as his sister's bride-price. So the sword gets back to the giants
again.

Swipdag's dead foe Halfdan left two young "avengers", Hadding and
Guthorm, whom he seeks to slay. But Thor-Brache gives them in charge
of two giant brothers. Wainhead took care of Hadding, Hafle of Guthorm.
Swipdag made peace with Guthorm, in a way not fully explained to us, but
Hadding took up the blood-feud as soon as he was old enough.

Hadding was befriended by a woman, who took him to the Underworld--the
story is only half told in Saxo, unluckily--and by Woden, who took him
over-sea wrapt in his mantle as they rode Sleipner over the waves; but
here again Saxo either had not the whole story before him, or he wished
to abridge it for some reason or prejudice, and the only result of this
astonishing pilgrimage is that Woden gives the young hero some useful
counsels. He falls into captivity, entrapped by Loke (for what reason
again we are left to guess), and is exposed to wild beasts, but he slays
the wolf that attacks him, and eating its heart as Woden had bidden him,
he gains wisdom and foresight.

Prepared by these adventures, he gets Guthorm to join him (how or why
the peace between him and Swipdag was broken, we know not), and they
attack their father's slayer, but are defeated, though Woden sunk Asmund
Swipdag's son's ship, Grio, at Hlessey, and Wainhead and Hardgrip his
daughter fought for Hadding.