“My dear Watson,” said he, as he rose from the table and paced up and down the room, “You are most long-suffering, but if I have told you nothing in the last three days, it is because there is nothing to tell. Even now this report from Paris does not help us much.”

“Surely it is final as regards the man’s death.”

“The man’s death is a mere incident⁠—a trivial episode⁠—in comparison with our real task, which is to trace this document and save a European catastrophe. Only one important thing has happened in the last three days, and that is that nothing has happened. I get reports almost hourly from the government, and it is certain that nowhere in Europe is there any sign of trouble. Now, if this letter were loose⁠—no, it can’t