‘ONE OF MY CLIENTS MAY BE PLANNING A MURDER.’ Twin brothers Mason and Tyler Linfield are due to split an $800 million inheritance when they turn 25 in a few months. After the estranged heirs unexpectedly decide to take a guided pack trip in the High Sierra wilderness as a ‘bonding’ experience, Herbert McCabe, attorney for the family trust, is concerned. He turns to Quill Gordon, who accepts an unofficial assignment to see that both brothers get through the trip alive. In the remote back country, unable to communicate with civilization or use modern technology, Gordon and his friend Sam Akers must rely on their wits and intuition to sort out a dangerous and escalating game of bluff and double bluff, where it’s hard to tell who the players are and whether anyone is what he or she seems to be. As incident piles upon incident, it becomes an open question whether the twins (or their watchers) will make it to the end of the trail.