TO CELEBRATE THE 100TH ANNIVERSARY OF THE NATIONAL PARK SERVICE, WE REPRINTED THIS CLASSIC MYSTERY SET IN YOSEMITE AND WRITTEN TO CELEBRATE THE 40TH ANNIVERSARY OF THE PARK SYSTEM "Clarence Budington Kelland is master of the slick, swift, entertaining yarn." -The New York Times "First Kelland book I ever read. Got me hooked." -Goodreads The Sinister Strangers starts in midcentury Yosemite National Park when probationary ranger...