Declination. The Borealis Investigations, #3

Shaw and North are together. Finally. After eight years of knowing each other and loving each other and slipping past each other, they've finally told each other how they feel. Borealis Investigations is growing, and they have a major prospective client on the line. Everything is finally moving the way it should. Until the night Shaw receives a phone call telling him that Detective Jadon Reck, his former boyfriend, has been attacked. In spite of a warning from Jadon's partner, Shaw and North begin an investigation into the attack.
But nothing is at it seems. City police are working to cover up evidence faster than Shaw and North can find it, and the motive for the attack seems impossible to unravel. When a conspiracy of dirty cops takes action against Shaw and North, the two detectives realize they are running out of time. They have to get answers about the attack on Jadon before they lose their own lives. But Shaw knows there are things worse than death.
And one of them has come back for him, to finish what he started seven years before.  The West End Slasher has returned.