Book excerpt: It's called "White Blaze Fever" and although you will not find the fever mentioned in any medical journal, have no doubt in your mind - it does exist and no one is immune. Only the most casual, most minute contact with the Appalachian Trail is needed to catch the fever. I now welcome you to be my vicarious hiking partner as we pursue the two-inch by six-inch white blazes from Springer Mountain, Georgia to Mount Katahdin, Maine. Through my daily journal entries - revised only a little - you will share encounters with bear, moose, snakes and other wildlife. You will feel the thrill of viewing the most magnificent vistas east of the Mississippi and come to know a unique collection of individuals guaranteed to bring a smile to your face and warmth to your heart.