"What did the man look like and how was he dressed?" asked Billy eagerly.

"He had on an American uniform," replied Frank slowly, as he tried to make the picture clear in his own mind.

"Perhaps it was Tom!" cried Bart.

"No, it wasn't," said Frank positively. "The uniform was smart and newer than ours. Tom's must be in tatters and you remember the girl said it was. Then, too, I'd know Tom's gait among a thousand just as you would. No, it wasn't Tom, worse luck."

"Who was it, then?"

"I think it was Nick Rabig," replied Frank.

"Nick Rabig!" the others cried together.

"Mind, I only say I think," repeated Frank, looking around to see that no outsider was within hearing. "I wouldn't be willing to swear to it. But the motions were Nick's—you know he runs like a cart horse—and you know that Nick has been togged out in a new uniform since he came back from that queer captivity of his among the Huns."

"Nick Rabig there," mused Bart perplexedly, as he began to pace up and down. "What on earth could he have been doing there?"

"Say," put in Billy with agitation, "could he have done anything to Tom? Suppose he went there, no matter for what purpose; suppose he found that German crowd dead to the world; suppose he found Tom upstairs bound and helpless. You know how Nick hated him."