"Does this lead to the room where the explosion took place?" asked Jennie. "Yes." "And is this the only entrance?" "The only entrance, madame." "Were the men on guard in this doorway injured by the explosion?" "Yes. They were not seriously injured, but were rendered incapable for a time of attending to their duties." "Then a person could have escaped without their seeing him?" "A whole regiment of persons might have escaped. You will understand the situation exactly if I compare this corridor to a long cannon, the room at the end being the breech-loading chamber. Two guards were inside the room, and two others stood outside the door that communicated with this corridor. These four men were killed instantly. Of the guards inside the room not a vestige has been found. The door, one of the strongest that can be made, somewhat similar to the door of a safe, was flung outward and crushed to the floor the two guards who stood outside it in the corridor. Between the chamber in which the chest lay and the outside entrance were sixteen men on guard. Every one of these was flung down, for the blast, if I may call it so, travelled through this straight corridor like the charge along the inside of the muzzle of a gun. The guards nearest the treasure chamber were, of course, the more seriously injured, but those further out did not escape the shock, and the door by which we entered this corridor, while not blown from its hinges, was nevertheless forced open, its strong bolts snapping like matches. So when you see the great distance that intervened between the chamber and that door, you will have some idea of the force of the explosion."
"There is no exit, then, from the treasure chamber except along this corridor?"
"No, madame. The walls at the outside of the chamber are of enormous strength, because, of course, it was expected that if an attempt at robbery were ever made, it would be made from the outside, and it is scarcely possible that even the most expert of thieves could succeed in passing two guards at the door, sixteen officers and soldiers along the corridor, two outside the Treasury door, and two in the chamber itself. Such a large number of soldiers were kept here so that any attempt at bribery would be impossible. Among such a number one or two were sure to be incorruptible, and the guards were constantly changed. Seldom was either officer or man twice on duty here during the month. With such a large amount at stake every precaution was taken."
