This stimulating story forms the concluding episode of the present series of six Nirvana yarns-the crown and climax of them all. Nirvana, the dainty little dancer who has captured Tinker's youthful imagination, has been the sport of Fate-the victim of her heartless sister Marie, of criminals high and low. But now easier times show up ahead for her. The genius of Sexton Blake and the devotion of Tinker are eliminating her enemies one by one, and, with this yarn, goes the most powerful of them all-the Mysterious Monseigneur.