Sansa isn't the best at crafting domains in Horizon and it has taken her a long time to get a facsimile of her favorite bits of Winterfell there. There must be someone near her working on their own domain, however, because she can hear them and they are close enough that she can walk over to them.

"Memory is a tricky thing, I think. Nostalgia paints things either black or golden depending on how you experienced it. What are you trying to remember, exactly?" This man's domain is quite different than her own.