"Nevertheless, do as I say," Peter insisted. "For the present, excuse me. I must look after my guests."
The music had ceased, there was a movement towards the supper room. Peter offered his arm to Madame de Lamborne, who welcomed him with a brilliant smile. Her husband, although, for a Frenchman, he was by no means of a jealous disposition, was conscious of a vague feeling of uneasiness as he watched them pass out of the room together. A few minutes later he made his excuses to his wife, and, with a reluctance for which he could scarcely account, left the house. There was something in the air, he felt, which he did not understand. He would not have admitted it to himself, but he more than half divined the truth. The vacant seat in his wife's carriage was filled that night by the Baron de Grost.
At one o'clock precisely Monsieur de Lamborne returned to his house, and found de Grost gazing with obvious respect at the ponderous safe let into the wall.
"A very fine affair—this," he remarked, motioning with his head towards it.
"The best of its kind," Monsieur de Lamborne admitted. "No burglar yet has ever succeeded in opening one of its type. Here is the packet," he added, drawing the document from his pocket. "You shall see me place it in safety."
Peter stretched out his hand and examined the sealed envelope for a moment closely. Then he moved to the writing-table, and, placing it upon the letter scales, made a note of its exact weight. Finally he watched it deposited in the ponderous safe, suggested the word to which the lock was set, and closed the door. Monsieur de Lamborne heaved a sigh of relief.
"I fancy this time," he said, "that our friends at Berlin will be disappointed. Couch or easy-chair, Baron?"
"The couch, if you please," Peter replied, "a strong cigar, and a long whisky and soda. So! Now for our vigil."
The hours crawled away. Once Peter sat up and listened.