The joys of hiking are many. From the peace of the valley to the sanctuary of the deep forest, there is always something to savor in the wild places. But, unbeknownst to the average hiker, there is more to see out there than oak trees, sylvan streams and a few squirrells. To the more perceptive among us, the natural world is suffused with spirits. All hikers who wish to meet with the nature spirits can now proceed down that rugged path confidently, guide in hand. Filled with tips about how to approach every type of spirit, this guide could well mean the difference between a successful...