Wow, I'm even more depressed now. I wasted 3 fate on that particular thing, and I couldn't do ANYTHING in there. Now I know why, if it's meant for someone with stats as high as yours ><
Well, maybe not as high as mine, because all the challenges are straightforward (except Shadowy, which is at 35 or so) for me. So, probably 40-50 is the range you need to be for that.
Unless everyone's been lying to me and the next bunch of episodes are The Great Divide II, The Great Divide III, Return to the Great Divide, and Bride of the Great Divide, in which case I hate you all and I'm never touching Avatar again.