Mystery Ranch w/Direct link technology (A Mystery Thriller) by Arthur Chapman
There was a swift padding of moccasined feet through the hall leading to the Indian agent's office. Ordinarily Walter Lowell would not have looked up from his desk. He recognized the footfalls of Plenty Buffalo, his chief of Indian police, but this time there was an absence of the customary leisureliness in the official's stride. The agent's eyes were questioning Plenty Buffalo before the police chief had more than entered the doorway.