But even suppose he had been squared, it did not clear the matter up. In this case French did not believe he could have sustained his interrogation without giving himself away. He would have guessed what lay behind the questions and would have shown fear. No, French was satisfied the man had no suspicion of anything so grave as murder, and it seemed impossible that the body could have been put into the crate without making the terrible fact clear. The fourth test point seemed equally convincing. If the body had been put into the crate in the works, where was the duplicator? It could not have been left in the works. The store-keeping methods would have revealed it long before this. Could it have been taken out? French could not imagine any way in which it could have been done. The duplicator was a big machine and heavy. It could not have been lifted by less than three or four people. Of course there was the runway and differential, but even these would only have lifted it out of the crate on to a car or lorry. To have unloaded it secretly would involve the existence of a second differential in some place available only to the murderer, a far-fetched hypothesis, though no doubt possible. But what finally convinced French was the consideration that if the murderer really had been able to dispose secretly of so bulky an object, he would surely have used this method to get rid of the body and thus have saved the whole complex business of the crate. French felt deeply disappointed as he found himself forced to these conclusions. A promising theory had gone west and he was left as far from a solution of his problem as when he took it up. Moreover, up to the present at all events, the Yard had been unable to learn anything at the St. Pancras or Euston hotels of either “John F. Stewart” or “James S. Stephenson.” Evidently in this case, as in most others, there was no royal road to success. He must simply go on trying to amass information in the ordinary humdrum routine way, in the hope that sooner or later he might come on some fact which would throw the desired light on the affair. Tired and not a little out of sorts, he turned in. Chapter Eight A Fresh Start It is wonderful what an effect a good night’s sleep and a bright morning will have on the mind of a healthy man. French had gone to bed tired and worried about this case. He woke cheery and optimistic, philosophic as to his reverses, and hopeful for the future. On such a morning, indeed, it was impossible that anyone could be despondent. Though October had begun, the sun shone with a thin brilliancy reminiscent of early summer. The air, floating up gently from the garden in the rear of the hotel, was surprisingly warm and aromatic for the time of year. Birds were singing in the trees and there was a faint hum of insects from below. As he looked out of his window French felt that life was good and that to squander it in sleep was little better than a sin.