Monsieur Zenith was a criminal mastermind and member of Les Hommes Mysterieux.
Zenith was an albino, and used drugs to overcome his condition. This afforded him physical power and ability beyond that of a normal man.
Cursed with a perpetual sense of ennui, Zenith's boredom and dissatisfaction can only be relieved by danger, adventure and opium.
Zenith was created by Anthony Skene as a villain in his Sexton Blake detective stories.