So I threw together a quick image of what I envision as an example. Please excuse the crude nature of the diagram:
So based on this, this adventure starts off with the party in the proverbial town, where they have four courses of action that could be events of; rumors, request, etc. for hooks. From the top event, the party goes to the Forest for whatever reason. I would point out that I envision each event kicking off a session and for each session the villain moves one space along his path to success, ie. the ruins on the first session. Though the party may very well head there first. Anyway, at the forest adventure happens and the party gets a clue. What that clue is, is based on the progression of the plot, ie. where the villain is. If the part goes there first, it may be an encounter vs some spiders attacking an old shaman woman. The Set Piece, to use Savage World’s vernacular, would be her offering to scry their futures. If they go there later, they find the shaman’s home in ruins, suggesting a struggle and possibly a kidnapping.
I guess I should focus on a motive and plan for the villain. So looking at it, he needs to head to the ruins to get a magical dagger, then to the forest for a sacrifice, and finally to the swamp for a key ingredient (frog saliva) for success of casting a summon spell… blah blah blah.
I should probably delete this, as the image, I don’t believe, is as intuitive as I would have hoped it would be. But, I’ll leave it. I’m tired, and perhaps someone will stumble along this and offer a mind blowing suggestion!