New Scotland Yard/Doyle and Acton

Can London's most elusive killer elude the keen minds of Scotland Yard's most unlikely pair of detectives? An Irish redhead of humble beginnings and modest means, Kathleen Doyle is the antithesis of Chief Inspector Michael Sinclair, Lord Acton, the brilliant but enigmatic lord with a knack for solving London's most high profile homicides. When a horse trainer is found dead at a racetrack, the duo's investigation does little to deter the killer at large. Jeopardizing the case are their colleagues at CID headquarters, whose nosing into the nature of Doyle and Acton's after hours relationship threatens to lay bare the most classified information of all. As the murders pile up, Doyle and Acton uncover something far more sinisiter than they could have imagined. Now that they know too much, their partnership could be very brief indeed. . .

Two of Scotland Yard's most gifted detectives navigate the darkest corners of London to solve a series of murders that will blur every line between right and wrong… Chief Inspector Michael Sinclair, Lord Acton, and rookie detective Kathleen Doyle ruffle more than a few feathers at CID Headquarters when their relationship comes to light. But office politics quickly become trivial amid a rash of underworld murders. As the body count climbs, Doyle uncovers a vicious war over lucrative turf between the Russian mafia and an Irish terrorist group. But their acts of revenge are almost too much for Scotland Yard to keep up with-and when Acton seems unusually troubled by the crimes, Doyle wonders what sparked the conflict in the first place. Perhaps there's nothing more to it than under-the-table business dealings gone awry. Or perhaps a single act of vigilante justice ignited a brutal battle. As Doyle and Acton fight not to become the next victims, they'll find that the truth may be best left unspoken, and retribution may be best left to fate…

While Acton and Doyle, two of Scotland Yard's finest, pursue a self-appointed judge, jury, and executioner, Acton's own questionable methods may prove their undoing… The victims are all criminals who eluded justice-until they ran afoul of an avenger whose modus operandi is a bullet to the back of the head. The key to the vigilante's identity lies in connecting the cold cases to an event that may have triggered retribution after all these years. Meanwhile, Doyle finds herself shadowed by a mysterious figure. After the man steps forward to rescue her from harm, she wonders why he is invested in protecting her. But when she learns he's in contact with Acton's nemesis, she fears she's being used in a plot against her husband. The stakes are high, and both Doyle and Acton must work independently to outwit the players-before their lives are brought crashing down like a house of cards…