Silent are the Dead - D. M. Rowell

While back on tribal land, Mud Sawpole uncovers an illegal fracking operation underway that threatens the Kiowas'' ancestral homeland. But there''s an even greater threat: a local businessman involved in artifact thefts is murdered, and a respected tribe elder faces accusation of the crime. After being roped in by her cousin, Denny, they begin to investigate the death while also pursuing evidence to permanently stop frackers from destroying Kiowa land, water, and livelihoods. When answers evade her, Mud heeds her grandfather''s and great-aunt''s words of wisdom and embraces Kiowa tribal customs to find the answers that she seeks. But her ceremonial sweat leads to a vision with answers wrapped in more questions. Mud and Denny race against the clock to uncover the real killer and must face the knowledge that there may be a traitor - and a murderer - in their midst. It''s already too late for one victim - and Mud may be next.