Bill Walker 's Books
A very well recieved series by Bill Walker are the books, featuring tropes. The most popular books are D-Notice, The Normandy Club, Skywalker--Highs and Lows on the Pacific Crest Trail, A Note from an Old Acquaintance, Skywalker--Close Encounters on the Appalachian Trail, which was published in 2022.
D-Notice
The Normandy Club
Skywalker--Highs and Lows on the Pacific Crest Trail
A Note from an Old Acquaintance
Skywalker--Close Encounters on the Appalachian Trail