Angels Dining at the Ritz — John E. Gardner

The third adventure of the feisty Suzie Mountford
Under the shadows of the first B17s taking off from East Anglia in 1942, the Ascoli family is found ruthlessly murdered their faces blasted off with a shotgun. It's an intriguing inquiry, all the more so because Max Ascoli had been the barrister for Golly Goldfinch, the monster whom Sergeant Mountford had helped capture in 1940. Then Golly escapes, and his psychiatrist warns that he is in search of revenge.