I don't have the time (way too many plot bunnies) and I don't think that I could do this idea justice, but perhaps someone here will be willing to take up the challenge:

Summary: A girl from the modern world is inexplicably dumped into Mirkwood. She has only basic wilderness survival skills, doesn't know the language, and she's scared of spiders. This is going to suck.

Longer explanation: A more realistic take on the Girl-Falls-Into-Middle-Earth cliche. The main character ends up in Mirkwood, and while she has some survival skills, it basically amounts to 'anything you could learn as a Girl Scout', and her combat skills cannot be more than 'knows recreational archery' and/or 'has some martial arts training'. She doesn't join the Fellowship, and this should be a mostly OC story (or focus on minor characters in the books). It's mostly a story of a lost, scared girl struggling to survive in an unfamiliar land and adjust to the loss of everyone she knew and loved, not an epic adventure story like Tolkien's masterpiece.

So, how does it sound?