He therefore left his machine where it would not be discovered until he had got safely away.
So far we are within the bounds of possibility, are we not ?" "Well, it is possible, no doubt," said I, with some reserve.
"We have to remember, Watson, that whatever occurred is certainly something very extraordinary.

Well, now, to continue our supposititious case, the couple--not necessarily a guilty couple--realize after the murderer is gone that they have placed themselves in a position in which it may be difficult for them to prove that they did not themselves either do the deed or connive at it.

They rapidly and rather clumsily met the situation.

The mark was put by Barker's bloodstained slipper upon the windowsill to suggest how the fugitive got away.

They obviously were the two who must have heard the sound of the gun; so they gave the alarm exactly as they would have done, but a good half hour after the event." "And how do you propose to prove all this ?" "Well, if there were an outsider, he may be traced and taken.