Kill and Tell by Creed, Adam

A reformed Sicilian criminal, Carmelo Trapani, has been kidnapped and his search for the aged Carmello leads Staffe all the way back to a terrible act at the Battle of Cable Street. Meanwhile, Staffe's own loyal servant, DS Pulford, is in Pentonville awaiting trial for the murder of Jadus Golding, the very man who attempted to murder Staffe.