Publisher's Synopsis
"On the night of the full moon in Wyoming Territory, somebody dies a horrible and ghastly death by being scalped. For months, the territory is held by the grip of fear and Governor Hale turns to Charles Porter, founder of the Illinois Detective Agency, for help. Porter's two top agents, James Duffy and Jack Cavill, are on holiday with their lady friends, so Porter assigns Joe Charles and Tom Adcock and scout/tracker Joseph Goodluck, a Mexican Comanche, to the assignment. Charles, Adcock, and Goodluck report to Governor Hale in Wyoming Territory. The most recent full-moon killing took place just a week earlier at the ranch owned by Ben Foster, located north of the capital in Cheyenne. From the Foster Ranch, Goodluck tracks the mystery killer northeast into South Dakota where it appears the trail leads to the Pine Ridge Indian Reservation. Goodluck leaves Adcock and Charles behind, as they are not allowed on the reservation, and he visits
