The best thing about John Ramsey Miller's compulsively readable debut thriller is his villain, a former Drug Enforcement Agency hotshot named Martin Fletcher. Thinking he was betrayed by his colleagues in a raid that went disastrously wrong, the brilliant Fletcher takes his revenge against them by attacking their families. Now it's the turn of Paul Masterson, half-blinded in the same ambush, hiding out in Montana until Fletcher's mad rage forces him to gather up his old skills and go on the attack.