Nebulous
Legend
That's a pretty nifty solution. Nice stuff. Although sending a low-medium party in after the disappearance of "high-level druids" sounds like a risky and unlikely strategy. Maybe a group of highly erudite sages, but ones who aren't used to missions in the field (i.e. low adventuring levels).
Ok, good point, I can easily change it to ambitious "mid-level druid/scholars" of middling or no renown.