the event at hand, and to prove the innocence of the three accomplices, either by arresting the invisible bearer of the fourth letter or by suggesting some plausible explanation. In short, he would have to be there; and that was interesting indeed!
And then the news of Marie Fauville was not good. With unwavering obstinacy she persisted in her suicidal plans. She had to be artificially fed; and the doctors in the infirmary at Saint-Lazare did not conceal their anxiety. Would Don Luis Perenna arrive in time?
Lastly, there was that one other thing, the threat of an explosion which was to blow up Hippolyte Fauville's house ten days after the delivery of the fourth letter, a really impressive threat when it was remembered that the enemy had never announced anything that did not take place at the stated hour. And, although it was still ten days—at least, so people thought—from the date fixed for the catastrophe, the threat made the whole business look more and more sinister.
That evening, therefore, a great crowd made its way, through La Muette and Auteuil, to the Boulevard Suchet, a crowd coming not only from Paris, but also from the suburbs and the provinces. The spectacle was exciting, and people wanted to see.
They saw only from a distance, for the police had barred the approaches a hundred yards from either side of the house and were driving into the ditches of the fortifications all those who managed to climb the opposite slope.
The sky was stormy, with heavy clouds revealed at intervals by the light of a silver moon. There were lightning-flashes and peals of distant thunder. Men sang. Street-boys imitated the noises of animals. People formed
