Suddenly Dan's face fell grave.
"Now, what's the matter?" quizzed Darrin.
"I've just had a horrible thought," Dan confessed. "You haven't been concealing from me, have you, the fact that, though you had no frontier passport you have a letter or some form of credentials to the American Ambassador?"
"I haven't anything of the sort," Dave rejoined, he, too, now looking grave.
"A fine lay-out this is, then," growled Danny Grin. "Here we are, going to the American Ambassador on a matter of the utmost delicacy. We are going to tell him and ask him some of the secrets of the United States government, and we haven't a scrap of paper to introduce us. Do you realize what we'll get? The Johnny-run-quick! We'll get the balluster slide, the ice-pitcher greeting! Dave, we're going to land hard on the sidewalk right in front of the Embassy. And then some frog-eating, Johnny Crapaud policeman will gather us in as disorderly persons! Fine!"
CHAPTER XV
AT THE AMERICAN EMBASSY
As the taxicab dashed around a corner Dave raised his cap.
"Well, this must be our destination," he announced. "I've just saluted Old Glory as it flutters over the building."