The novel’s anarchists go their different ways, with Ossipon fading into insignificance in the anarchist scene in his distraction and obsession over Winnie’s death. Only The Professor remains active in his plotting. He is dangerous precisely because of his ability to fade inconspicuously into the multitude and his willingness to become a destructive force—as he sees it, for the sake of humanity’s betterment. The story thus ends on an ambiguous note. On one hand, anarchism has failed to be the terrifying threat it purported to be when Vladimir set Verloc to work on his bomb plot. On the other hand, the rare Professor-like figure could always be at large, “unsuspected and deadly,” undetectable and unstoppable.