There was no uproar above which he could not make himself heard, he added; and suddenly he made a demonstration.
"Allow me," he said.

With lowered forehead, without looking up, swiftly and ponderously he crossed the room to one of the French windows.

As if giving way to an uncontrollable impulse, he opened it a little.

Mr Vladimir, jumping up amazed from the depths of the arm-chair, looked over his shoulder; and below, across the courtyard of the Embassy, well beyond the open gate, could be seen the broad back of a policeman watching idly the gorgeous perambulator of a wealthy baby being wheeled in state across the Square.
"Constable!" said Mr Verloc, with no more effort than if he were whispering; and Mr Vladimir burst into a laugh on seeing the policeman spin round as if prodded by a sharp instrument.

Mr Verloc shut the window quietly, and returned to the middle of the room.
"With a voice like that," he said, putting on the husky conversational pedal, "I was naturally trusted.