The stick game : a Gabriel Du Pre mystery [WorldCat Entities]

"Gabriel Du Pre investigates the disappearance of a friend's son and the disturbing parallels between the high incidence of birth defects and the activities of a gold mine near the reservation."@en
"The latest installment in this Montana series finds amateur sleuth and cattle rancher Gabriel Du Pre uncovering the dirty secrets of an industrial gold mine and searching for a troubled teenage boy."
"Du Pre investigates a gold mining company whose pollution might be poisoning the children of a nearby reservation Something is rotten in the Fort Belknap Reservation. Life has always been tough on this barren stretch just south of the Canadian border, but now the children are dying. While playing his fiddle in a reservation bar, part-time deputy Gabriel Du Pre meets an accordionist who suspects that the children's health defects and low test scores are connected to the nearby Persephone mine. Meanwhile, Du Pre investigates the disappearance of one of the afflicted children. When the boy turns up dead, the accordionist's theory gains credence. It wouldn't be the first time that the rich men of Montana found wealth at the expense of the reservation's children."