There was much that Baltazar had set himself to do during his three years. First he must make up in mathematical output the loss of his wander-time in China. Now all the world understands the irresistible force that compels the poet, at last, to give form to long haunting dreams; the need, also, of the astronomer to crystallize the results of his discoveries and formulate his epoch-making theories; but the passion of the mathematician to do the same is not so easily comprehensible. For years Baltazar had dreamed of an exhaustive and monumental treatise on the Theory of Groups which would revolutionize the study of the higher mathematics, a gorgeous vision the mere statement of which must leave the ordinary being cold and the first attempt at explanation petrify him with its icy unintelligibility. The dream was now in process of accomplishment. He had also to put into form fascinating adventures into the analytical geometry of the ghostly and unrealizable space of Four Dimensions. There, he was wont to assert, you entered the true Fairyland of mathematics. To all these labours he brought the enthusiasm of the poet or the astronomer. Another and a totally different sphere of activities absorbed much of his energy. In China he had assimilated a vast store of philosophical learning, with which equipment he prepared to re-edit many European versions of the Chinese classics misconceived through faulty erudition. He had brought from China stacks of rare manuscripts, piles of notes, materials for the life-work of any scholar. And, last, he had thrown himself with impetuous zeal into the intellectual training of Quong Ho. The mutual attitude of the solitary pair was one of curious delicacy. As master and man they were league-sundered by the gulf of convention. As teacher and pupil they were drawn together into close intellectual intimacy. It was the Chinaman’s exquisite tact that simplified the situation for the direct and masterful Englishman. As a servant he scrupulously observed the decorum of the attendant—there never existed head butler in ducal mansion who could surpass his perfection of manner; but as disciple he subtly raised himself to the plane of social equality, and gauged to a hair’s breadth the shade of familiar address warranted by the position. * * * * * “Quong Ho,” said Baltazar one day at dinner, when the Chinaman had gone through the usual solemn farce of offering him Burgundy, “your discretion is beyond the value of rubies. Never once have you remarked on the apparent vanity of this daily proceeding. Yet in your own mind you must have wondered at it.” “It is not for me to speculate on the reason for your honourable customs,” said Quong Ho. “Yet why do you think I cause myself to be offered wine every day only to refuse it?”