''Jane Casey''s police procedurals go from strength to strength'' Sunday Times''If you have not read Jane Casey, start immediately'' Marian Keyes''The most dangerously addictive series in crime fiction'' Erin Kelly______________Their job is to fight crime. Now they are the victims. . . A killer is terrorising London and this time the police are the targets.Urgently re-assigned to investigate a series of attacks on fellow officers, Maeve Kerrigan and her boss Josh Derwent have little idea what motivates the killer''s fury against the force.And they know it will only be a matter of time before the killer strikes again.