"That explains his decision to take the projectile to Washington," commented Detective Crissey, "he believed he could kill two birds with one stone—get back his papers and earn a big fee from Mrs. Charleworth."

"Also," added Josie, "he would be able to give the German Master Spy full information concerning the projectile, and so reap another reward. But all his diabolical schemes were frustrated by Joe Langley's bullet."

"Well, here's the desk," said Chief Farnum, "but where are those important papers, Miss O'Gorman?"

"And what do they prove?" added Crissey.

Josie slid back the panel in the square pedestal, disclosing the two compartments filled with papers. These she allowed the police and the detectives to read, arid they not only proved that John Dyer was in the pay of an organized band of German spies having agents in Washington, New York and Chicago, but Crissey was confident the notes, contracts and agreements would furnish clues leading to the discovery and apprehension of the entire band. So the papers were placed in his charge to take to Washington, and their importance was a further argument for secrecy concerning John Dyer's death.

"So far as I am concerned," Josie said afterward to Colonel Hathaway and Mary Louise, "the spy case is ended. When they arrest Tom Linnet they will be able to prove, from the scraps of paper I found in the printing room of the hotel, that Linnet printed the circulars from copy furnished by Dyer, and that Dyer and Linnet together directed the envelopes, probably in the still hours of the morning at the hotel desk, where they were not likely to be disturbed. The circulars may not be considered legally treasonable, but the fact that Linnet personally placed the bomb that destroyed the airplane works will surely send him to the scaffold."

"I suppose you will be called as a witness," suggested Mary Louise, "because you are the only one who overheard his verbal confession of the crime."

"It wont take much to make Linnet confess," predicted Josie. "He is yellow all through, or he wouldn't have undertaken such dastardly work for the sake of money. His refusal to undertake the second job was mere cowardice, not repentance. I understand that sort of criminal pretty well, and I assure you he will confess as soon as he is captured."

But, somewhat to the astonishment of the officers, Tom Linnet managed to evade capture. They found his trail once or twice, and lost it again. After a time they discovered he had escaped into Mexico; afterward they heard of a young man of his description in Argentine; finally he disappeared altogether.

The arms of the law are long and strong, far-reaching and mercilessly persistent. They may embrace Tom Linnet yet, but until now he has miraculously avoided them.