Blue Rubicon (Detective Lincoln Munroe, Book 2‪)‬

When an on-duty member of the Ontario Provincial Police is found dead in his cruiser of an apparent self-inflicted gunshot wound, only Lincoln Munroe - now a patrol Sergeant - knows the truth. The officer was murdered, and all the evidence points to the suspect being another cop.But in a line of work where right and wrong aren't always separate, and where 'above the law' is the motto of too many, Lincoln finds himself on an ethical tightrope, working both sides of the police force in an attempt to unravel a web of corruption in an unsanctioned investigation that may cost him his life.