Give a Man a Gun — John Creasey

CITY OF TERROR

Night after night the number of policemen murdered increased. Day by day the cry for more armed police and vigilante patrols grew louder. Was the underworld in open revolt against the law? Was there a vendetta against the police? Was a single mastermind behind the killings which were whipping all of London into a frenzy of fear? It was Inspector Roger West's job to find the answer…and fast. But then one day he found himself with a gun in his back and a knife at his throat -- and Roger West disappeared…