Gwyllgi's understanding of the nature of Asgardian culture was... lacking. The stories that drove her fertile imagination regarding the mythology of the aesir, and to a far lesser extent the vanir, was word of mouth from poorly educated peasant folk, and the occasional priest. Valkyrie's were at once honored maidens of the shield, and horrifying effigies, creatures that stole warriors from their families in the prime of their youth, leaving loved ones to suffer alone, and often starve. Creatures that bestowed the ultimate honor of glorious death.
Gwyllgi did not come with a valkyrie escort, but she did come. Through Muspelheim, where she found she was quite the powerhouse, embattling her way up and down the volcano's and magma flows against the fire giants. She liked them... they'd been respectful, even accommodating, and as eager as her for combat. She hoped to find asgard, home of the gods of warriors, to be of a similar disposition, though the worlds told widely divergent tales, painted many colors, of the aesir.
She stood upon a rainbow, high above the mortal realms, paws thankfully finding traction upon the magical substance of the bridge. Heimdal should be here as well, she imagined. She knew the basics of the lore... though, again. What she had heard and what she knew were two possibly painfully different things. She kept that in the back of her mind.
She'd walked a long ways to get here. The bifrost spanned a very long path. Black dog ears twitched, but heard little more than the wind, which flattened her fur on one side and dragged her tail aside, to flap pitifully. The flames that leaked from her eyes were dragged by the wind as well, though they didn't inconvenience Gwyllgi, flickering over her nose. She dragged a hand through her hair, scooting a bang caught on her cheek back with the rest of it, and crossed her arms over her chest. She was clad openly in the chains of Brisingr, said to be of Freya's own necklace, used to chain Garm down to the gates of Hel to await the summonings of Ragnarok. Well, her mother didn't need to be chained down anymore, and the chains had been passed along to her.
Frankly, it was her thought was most likely, this call was to reclaim the necklace. If so... she'd be very upset. They'd have to fight her for the chains. She came, growly and with the posture of a hackles raised heckpup, perturbed and angry that she'd been 'summoned' in such a manner. She wasn't a god... but she was powerful. Her mother's power was recognized, and if the Gods weren't careful, they'd end up being forced to recognize her power, as well.