Green thoughts

Nothing wrong with Mirkwood. Followed by a quote from Tolkien:

As their eyes became used to the dimness they could see a little way to either side in a sort of darkened green glimmer. Occasionally a slender beam of sun that had the luck to slip in through some opening in the leaves far above, and still more luck in not being caught in the tangled boughs and matted twigs beneath, stabbed down thin and bright before them. But this was seldom, and it soon ceased altogether.