Right thanks :) *sits down and clears throat*
Well, I was thinking. When they are down the Mountain Path, the part where the snow falls down on top of them all. I was thinking, that's where. Yavanna is unfortunate to get swept of the side of the mountain...falling on one of the lower ledges. Suffering a few injuries of course, since the fall's not nice. I was thinking of separating her from the group for a while for dramatic purposes of course. So whilst they go down the mines one way, she'll find her own way to the mines herself too, and they re-unite back at the entrance of the mines of Moria.
I think Legolas would grow more protective over her, when they re-unite. After those set of events, as everyone would be scared for her life.
I also want to try out something there, regarding Yavanna having some sort of visions...not sure how I'll go about the vision idea yet...so will keep that a secret as to who it'll involve :)