I didn't see this in the walkthrough, so I though it was worth mentioning. If you're playing an elf and you tell Myrth that the reason you don't know where Quintarra is is that you're from a different continent, then he'll accuse you of losing your mind, but he'll mark the location on your map immediately, without you going through all the Stillwater Giant nonsense. (might depend on charisma, persuasion, etc. though...)
I played as an Elf and he still told me to get the Stillwater Giant! Oh well, not like it's hard to get! p.s.The REAL Giant is in Hardin's pass right? I wanna know if anyone could specify...