"Did you serve two men in the smoking-room?" asked the manager, turning to the waiter.
"Yes, sir, I served them each with a whisky-and-soda. But they are not
Germans, sir, I'll swear to that."
"We'll see, anyhow," was the manager's response. "You guard your door carefully, and I'll go in at the public entrance. Will you come with me, sir."
The manager led Bob to the door by which he had first entered the room, and then they both entered silently.
The room was empty; the two men had gone.
"But can't we do anything?" asked Bob.
"What can we do, sir? If you were mistaken, then no harm is done. If you were not, they must have seen you leave the room, and then made their way out. I'll speak to the hall-porter. There are very few people here to-night, and he will know how many people have gone out during the last five minutes."
"Yes," the hall-porter declared a few seconds later, "two gentlemen have just gone out in a hurry. They said they were late for an appointment, and had to make haste."
"Did you recognise them?" asked the manager.
"I've seen them here once or twice before," was the porter's reply, "but I know nothing about them."