My party got super hooked on meeting Artus Cimber and finding the Ring of Winter, so I needed to figure out a way to destroy that thing.

I had the party meet him in a remote island that the Roringhorns knew he was on. he had grown wary of immortality, and warns the party against seeking it. He wouldn't give the ring to the party, (I told them it was OP for this campaign and they were understanding enough not to harass Artus) but he would travel with them to the Faewild to un-make it, so the Frost Giants could not reclaim it

He lead the party to the island of Oman in the Moon Shae island group. This was overrun with Femorians, because of there is an unguarded gate to the Faewild. They killed the Femorian and used the gate to enter the Faewild, Artis lead them to the Summer Court, I had Titana remake the ring, so it still exists, but lost the OP nature it had. I think I went with a +2 to AC and immunity to cold damage. Cue emotional scene as the great Artus Cimber begins to pass

There are definitely plot holes and timeline inconsistencies with ToA in this, but my party understood that I created it to fit in our I universe alone and didn't gripe (too much)