Down Fall River Dead (A Ranger McIntyre Mystery, #8)

In the 1920s, Rocky Mountain National Park is brand new, yet there's already a feud going on between tour bus drivers and independent guides. One guide is found shot to death, but no one saw a gun. No one heard a shot. Then a bus driver is killed the same way.
Ranger McIntyre's glamorous lady detective friend, Vi Coteau, will investigate. Her partner, Eleanor, goes undercover and gets a job driving for the bus company. When it becomes evident that the buses are hauling something other than ...