Pheryll
Set Designer
idavis has added a nifty Playground to his website for players to try out the game mechanic before diving into the actual event. Caveat: it does not include the Golden Eye.
Not sure how well the Playground emulates the actual experience. I was able to get a certain layout from the playground that required diagonal movement to get beyond a zigzag wall (there was no straight path through). I have never seen a complete wall barrier like that in any of the fog events.