He and the German, as the boys decided to call Labenstein, spoke in whispers once more, and then shook hands, as if to seal some pact.
Then, as the boys watched, Lieutenant Secor opened the door of the stateroom, which had been locked. He stepped out into the corridor, and was now lost to view.
The next moment, to the surprise of Blake and his two friends, there came a knock on their own door, and a voice asked:
"Are you within, young gentlemen of the cameras? I am Lieutenant Secor!"
CHAPTER VII
"PERISCOPE AHOY!"
Sudden and unexpected was the knocking, and it found the boys unready to answer it. They had no idea that the conspirators—either or both of them—would come directly from their conference to the room where a watch had been kept on them.
"Do you think he saw us?" asked Joe, in a whisper.
"S'posing he did?" demanded Charlie. "We have the goods on him, all right."