"Certainly. Rapidity is above all necessary in our profession. It often takes a month to regain an hour lost. We've a chance now of catching Hector by surprise; to-morrow it will be too late. Either we shall have him within four-and-twenty hours or we must change our batteries. Each of my three men has a carriage and a good horse; they may be able to finish with the upholsterers within an hour from now. If I calculate aright, we shall have the address in an hour, or at most in two hours, and then we will act."
Lecoq, as he spoke, took a sheet of paper surmounted by his arms out of his portfolio, and rapidly wrote several lines.
"See here," said he, "what I've written to one of my lieutenants."
"MONSIEUR JOB—"Get together six or eight of our men at once and take them to the wine merchant's at the corner of the Rue des Martyrs and the Rue Lamartine; await my orders there."
"Why there and not here?"
"Because we must avoid needless excursions. At the place I have
designated we are only two steps from Madame Charman's and near
Tremorel's retreat; for the wretch has hired his rooms in the quarter of
Notre Dame de Lorette."
M. Plantat gave an exclamation of surprise.
"What makes you think that?"
The detective smiled, as if the question seemed foolish to him.
"Don't you recollect that the envelope of the letter addressed by Mademoiselle Courtois to her family to announce her suicide bore the Paris postmark, and that of the branch office of Rue St. Lazare? Now listen to this: On leaving her aunt's house, Laurence must have gone directly to Tremorel's apartments, the address of which he had given her, and where he had promised to meet her on Thursday morning. She wrote the letter, then, in his apartments. Can we admit that she had the presence of mind to post the letter in another quarter than that in which she was? It is at least probable that she was ignorant of the terrible reasons which Tremorel had to fear a search and pursuit. Had Hector foresight enough to suggest this trick to her? No, for if he wasn't a fool he would have told her to post the letter somewhere outside of Paris. It is therefore scarcely possible that it was posted anywhere else than at the nearest branch office."