You're supposed to go into the forest and find the dark elves. I don't have anything else about the farmers. The elves are the adventure.

Did... did she completely fail to comprehend the one thing she does know about the farmers, namely that they are being repeatedly attacked when they attempt to do any actual farming? The correct response here was something more like:

"A few minutes after you've got the plow hitched, there's a 'swish' noise and the horse falls down, an elven arrow protruding from it's neck. Roll initiative."