Who is Stillman really, the cutthroat of the Mano Rossa who hates Tex to death? What face is hidden under the hood of the First Brother of the criminal association? And why has the gang adopted the same name of a gang broken up years earlier by Willer? The solution of the case gives Aquila della Notte all the answers. Months later, in San Francisco, a homicidal maniac called Maestro lets loose, who kills with a mysterious substance that horribly disfigures the face of his victims! Tex and Carson, summoned by the chief of police, Devlin, investigate with the help of Lefty Potrero and Pat Mac Ryan.
In this issue: the preceding adventure extends from page 5 to page 43 (by Nizzi and Blasco); from page 44 to page 114, La tragedia della Shanghai Lady (by Boselli-Bonelli and Letteri).