25. The Deep Woods

Amy carefully makes her way through the forest, following the path as best she can. She takes a few small cuts on her arm from branches, and at one point loses the path before finding it again a few minutes later, but otherwise makes good progress.  After about half an hour she comes to a three-way fork in the path. To the east she sees the shimmering reflection of the moon, making her think there may be a river or lake that way. To the south, a clearing and some kind of small structures. To the west, the path winds off into darkness, much as it has heretofore.

Which way should Amy go?