“Yes, Monsieur officer,” stammered the mercer, more dead than alive, “at your service.”

“Come in,” said the officer.

And he moved out of the way to let the mercer pass. The latter obeyed without reply, and entered the chamber, where he appeared to be expected.

It was a large cabinet, close and stifling, with the walls furnished with arms offensive and defensive, and in which there was already a fire, although it was scarcely the end of the month of September. A square table, covered with books and papers, upon which was unrolled an immense plan of the city of La Rochelle, occupied the center of the room.