The Black Gang was the second Bulldog Drummond novel. It was published in 1922 and written by H. C. McNeile under the pen name Sapper.[1][2]
Premise
Following his experiences in Bulldog Drummond, Bulldog Drummond forms an organisation (the titular Black Gang) to operate, using brutal and illegal means, against left-wing movements in England. Alarmed by setbacks caused by the gang's activities, Carl Peterson, who is secretly the mastermind behind the left-wing movements, comes to England in disguise, accompanied by the femme fatale Irma, to stamp out the gang and gain revenge on Drummond for the events of the first novel.