So this is a really nasty argument between Borghild, Sleipnir's mother and Angrboða, the mother of Hel. I'm not sure what they are arguing about, but if its anything Angrboða has a severe dislike for Sleipnir for the unknown of who his sire is.

Borghild, Sleipnir, Angrboða, and Hel are mine.

Wildling Unicorns belong to rannarbananar of DA