From the earnest and thoughtful study of the theories of others, it followed now--as not uncommonly happens--that Andre-Louis came to develop theories of his own. He lay one June morning on his little truckle bed in the alcove behind the academy, considering a passage that he had read last night in Danet on double and triple feints. It had seemed to him when reading it that Danet had stopped short on the threshold of a great discovery in the art of fencing. Essentially a theorist, Andre-Louis perceived the theory suggested, which Danet himself in suggesting it had not perceived. He lay now on his back, surveying the cracks in the ceiling and considering this matter further with the lucidity that early morning often brings to an acute intelligence. You are to remember that for close upon two months now the sword had been Andre-Louis’ daily exercise and almost hourly thought. Protracted concentration upon the subject was giving him an extraordinary penetration of vision. Swordsmanship as he learnt and taught and saw it daily practised consisted of a series of attacks and parries, a series of disengages from one line into another. But always a limited series. A half-dozen disengages on either side was, strictly speaking, usually as far as any engagement went. Then one recommenced. But even so, these disengages were fortuitous. What if from first to last they should be calculated? That was part of the thought--one of the two legs on which his theory was to stand; the other was: what would happen if one so elaborated Danet’s ideas on the triple feint as to merge them into a series of actual calculated disengages to culminate at the fourth or fifth or even sixth disengage? That is to say, if one were to make a series of attacks inviting ripostes again to be countered, each of which was not intended to go home, but simply to play the opponent’s blade into a line that must open him ultimately, and as predetermined, for an irresistible lunge. Each counter of the opponent’s would have to be preconsidered in this widening of his guard, a widening so gradual that he should himself be unconscious of it, and throughout intent upon getting home his own point on one of those counters. Andre-Louis had been in his time a chess-player of some force, and at chess he had excelled by virtue of his capacity for thinking ahead. That virtue applied to fencing should all but revolutionize the art. It was so applied already, of course, but only in an elementary and very limited fashion, in mere feints, single, double, or triple. But even the triple feint should be a clumsy device compared with this method upon which he theorized. He considered further, and the conviction grew that he held the key of a discovery. He was impatient to put his theory to the test.