Revenge! | Page 9

you. I suppose you don't know of any--any chemist's shop open so late as this? I have a raging toothache and can't sleep, and I want to get something for it."
"Oh, the chemist's at the corner is open all night. Ring the bell at the right hand."
"I hate to disturb them for such a trifle."
"That's what they're there for," said the officer philosophically.
"Would you mind standing at the other door till I get back? I'll be as quick as I can. I don't wish to leave it open unprotected, and I don't want to close it, for the concierge knows I'm in and he is afraid to open it when any one rings late. You know me, of course; I'm in No. 16."
"Yes, I recognise you now, though I didn't at first. I will stand by the door until you return."
Dupr�� went to the corner shop and bought a bottle of toothache drops from the sleepy youth behind the counter. He roused him up however, and made him explain how the remedy was to be applied. He thanked the policeman, closed the door, and went up to his room. A second later the cord was cut at the window and quietly pulled in.
Dupr�� sat down and breathed hard for a few moments. "You fool!" he said to himself; "a mistake or two like that and you are doomed. That's what comes of thinking too much on one branch of your subject. Another two feet and the string would have been down on his nose. I am certain he did not see it; I could hardly see it myself, looking for it. The guarding of the side door was an inspiration. But I must think well over every phase of the subject before acting again. This is a lesson."
As he went on with his preparations it astonished him to find how many various things had to be thought of in connexion with an apparently simple scheme, the neglect of anyone of which would endanger the whole enterprise. His plan was a most uncomplicated one. All he had to do was to tie a canister of dynamite at the end of a string of suitable length, and at night, before the cafe doors were closed, fling it from his window so that the package would sweep in by the open door, strike against the ceiling of the caf��, and explode. First he thought of holding the end of the cord in his hand at the open window, but reflection showed him that if, in the natural excitement of the moment, he drew back or leant too far forward the package might strike the front of the house above the door, or perhaps hit the pavement. He therefore drove a stout nail in the window-sill and attached the end of the cord to that. Again, he had to render his canister of explosive so sensitive to any shock that he realised if he tied the cord around it and flung it out into the night the can might go off when the string was jerked tight and the explosion take place in mid-air above the street. So he arranged a spiral spring between can and cord to take up harmlessly the shock caused by the momentum of the package when the string became suddenly taut. He saw that the weak part of his project was the fact that everything would depend on his own nerve and accuracy of aim at the critical moment, and that a slight miscalculation to the right or to the left would cause the bomb, when falling down and in, to miss the door altogether. He would have but one chance, and there was no opportunity of practising. However, Dupr��, who was a philosophical man, said to himself that if people allowed small technical difficulties to trouble them too much, nothing really worth doing would be accomplished in this world. He felt sure he was going to make some little mistake that would ruin all his plans, but he resolved to do the best he could and accept the consequences with all the composure at his command.
As he stood by the window on the fatal night with the canister in his hand he tried to recollect if there was anything left undone or any tracks remaining uncovered. There was no light in his room, but a fire burned in the grate, throwing flickering reflections on the opposite wall.
"There are four things I must do," he murmured: "first, pull up the string; second, throw it in the fire; third, draw out the nail; fourth, close the window."
He was pleased to notice that his heart was not beating faster than usual. "I think I have myself well in hand, yet I must not be too cool when I get downstairs. There