Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Black Mountain

Les Standiford's books always hit the ground running and Black Mountain maintains that tradition. Corrigan, the Transportation Cop, an unlikely hero, is gritty and gutsy and Dara Wylie is teriffic. Politics, inflated egos, marital discord, complicate a murderous plot and combine for a great story. A NYC subway cop and a reporter pooling their wits to save the day in the rugged Wyoming mountains is unusual and effective. Lots of action; lots of suspense. A couldn't put it down read.