At Baltimore it occurred to Graham to send a telegram to Barnard to meet him at the train, and when he got out at Union Station the first person he saw was Barnard, white and haggard, looking for him through the bars of the train gate. He grasped the young man's hand as if it were a last straw for a drowning man to cling to, and demanded in a shaking voice to know if he had heard anything from Miss Hollister.

One of the first questions that Graham asked was whether Barnard had been back to the office where Miss Hollister had taken the dictation, to report her disappearance.

"Well, no, I hadn't thought of that,"' said Barnard blankly. "What would they know about it? The fact is I was rather anxious to keep the facts from getting to them. You see they warned me that there were parties anxious to get hold of those specifications. It's Government work, you know."

"They should know at once," said Graham sternly. "They may have inside information which would give us a clew to follow. The secret service men are onto a lot of things that we common mortals don't suspect."

Mr. Barnard looked mortified and convinced.

"Well, what _have_ you done so far? We would better understand each other thoroughly so as to save time and not go over old ground. You have been in communication with Police Headquarters, of course?" asked Graham.

"Why, no," said the older man apologetically. "You see, I got here just in time for the train, and failing to find the young lady in the station where we had agreed to meet, I took it for granted that she had used the extra time in driving about to see a few sights in the city, as I suggested, and had somehow failed to get back in time. I couldn't understand it because she had been quite anxious to get home to-night. I could have caught the train myself, but didn't exactly like to leave her alone in a strange city, though, of course, it's perfectly safe for a steady girl like that. Afterward it occurred to me that she might have gotten on the train and perhaps I should have done so too, but there was really very little time to decide, for the train pulled out two minutes after I reached the station. I waited about here for a time, and then went over to the Continental, where my sister is stopping, thinking I would ask her to stay in the station and watch for the young lady and I would go home; but I found my sister had run down to the shore for a few days; so I had something to eat and while I was in the dining-room your telegram came. I was hoping somehow you had seen Miss Hollister, or had word from her, and it was all right."