John Buchan 
The Free Fishers 

The Free Fishers by John Buchan tells the story of a young man named Peter who leaves his studies to go salmon fishing in the Scottish highlands. There he meets a mysterious older man named Basil who draws him into a secret society called the Free Fishers that is devoted to overthrowing tyranny and oppression. As Peter gets more involved with the group’s daring plans, he finds himself in increasing danger even as he falls in love with Basil’s beautiful daughter. This thrilling adventure novel set in early 19th century Scotland combines romance, intrigue, and the beauty of the highland landscape.