There had been times, during those journeys to and fro, when Gregg found it difficult to save himself from outbursts of laughter. He had to bite his lip hard in the effort to hold in check an imagination that was apt to run to extremes. From one point of view it had certainly been absurd that this awkward being, with his apparently limited range of movement, should have managed in a few seconds to lay out so many healthy, active men. By comparison, his batting performance, singular as it had seemed, faded into insignificance. The breathless swiftness of the action, the unerring aim, the immense force behind each blow, the incredible audacity of the act, almost persuaded Gregg that the thing was too exquisitely comic to be true. But when he forced himself to look at the matter seriously, he felt that there were little grounds for the explanation that the Clockwork man was simply a dangerous lunatic. The flight at a preposterous speed, the flying leap over the hurdle, the subsequent acceleration of his run to a pace altogether beyond human possibility, convinced the young undergraduate, who was level-headed enough, although impressionable, that some other explanation would have to be found for the extraordinary occurrence. Besides, there was Arthur Wither's story about the flapping ears and the queer conversation of the Clockwork man, his peculiar jerky movements, his sudden exhibitions of uncanny efficiency contrasted with appalling lapses. Once you had grasped the idea of his mechanical origin, it was difficult to thrust the Clockwork man out of your head. He became something immensely exciting and suggestive. If Gregg's sense of humour had not been so violently tickled by the ludicrous side of the affair, he would have felt already that some great discovery was about to be revealed to the modern world. It had never occurred to him before that abnormal phenomena might be presented to human beings in the form of a sort of practical joke. Somehow, one expected this sort of thing to happen in solemn earnest and in the dead of night. But the event had taken place in broad daylight, and already there was mixed up with its queer unreality the most ridiculous tangle of purely human circumstance. Allingham had an explanation for everything. He said that the loud noise was due to some kind of machine that this ingenious lunatic carried in his pocket. He argued that the rapid flight was probably to be accounted for by a sort of electric shoe. Nothing was impossible so long as you could adduce some explanation that was just humanly credible. And the strange antics of the Clockwork man, his sudden stoppings and beginnings, his "Anglo-Saxon" gestures and his staccato gait, all came under the heading of locomotor ataxia in an advanced form. * * * * *