where to get the other 15 attribute points?

tried searching, didnt find an answer.
I already did the droknar's hero's challenge quest for the first 15 so now im looking for other set of 15 att points.
Any help would be nice, thanks

there is another 2 part quest that you get in the desert, I cant remember the name of it, but it starts there if that helps.

You get the other 15 from a quest in the Forge can't remember her name.