Asdis is located in Uppland 7331,11207 (outside south wall of village). She accepts the Thick White Pelts for level 30 to 46 dropped by Abominable Snowman. She only accepts 20 pelts.
At level 32, with each pelt handed to Asdis, she gives:
a random gem (which sell for 16s77c to 2g34s11c)
spawns a green mob (killed for 726,616 xp, and got 9,010 xp for kill spawn)
gives 6,160,000 xp
or 50s.
The pelt itself sells for 30s74c.