The taxicab came to a stop before a handsome building.

On each side of the posts of the gateway stood a brass shield on which was the inscription:

"Embassy of the United States of America."

Very gravely Dan and Runkle followed Dave, each raising his hat to the Flag as soon as his feet touched the sidewalk.

"There's a carriage entrance below," said Dave, "but we'll take the plain way and walk in."

Paying and dismissing the taxicab driver, Dave led the way to the entrance.

"A naval party to see the Ambassador, at his convenience, on business," Dave announced to the attendant at the door.

They were shown to an anteroom near the door, where they were soon joined by a Mr. Lupton, who introduced himself as Second Secretary to the Embassy.

"The ambassador, Mr. Caine, will not be here before nine o'clock," announced Mr. Lupton. "I know that you are expected. You have not breakfasted?"

"No," Dave confessed.