First of all Karkadann, I want to tell you that your new age is a marvel

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It is a "back-to-the-basics" puzzle age and I was glad to have kept my notes about...oh well, I won't tell more about this subject
I already figured out 2 nice shortcuts putting down markers and seeing "shortcut routes" along the way, no cheating involves, I swear

.
For the fog issue, I thought that it was intended to fool the explorer because it became more and more dense as I was in your age, I was there since 30 minutes fooling around with the big ball and I received a phone call, so

, I stayed 2 hours and half, and after about 1 hour I was in a all foggy age. I was playing it on UAM Shard.
Here is a picture that I took there:

If you pay attention, you see that Annabelle-Sophie is wondering too

what she is doing up there LOL.