An attempt to steal away in one of the biplanes would be simply reckless folly, and of no avail—they had no definite advices as to the direction even that the Cossack band had taken in their proposed journey to the Russian capital, direct or roundabout, and, in addition, there was the fear that without an interpreter it would be equally foolish to approach Nikita, even though they located him.

The measure of life for the Cossack, with the death ring encircling his finger, fixed by Ricker as two weeks, and handed down, no doubt, with record of the ancient jewel, was still an uncertain quantity. It might be in this very hour that the slowly coursing venom had done its work.

The favor of just another day for the boys’ venture was needed to save it from hopeless failure. Once on the trail there was always the chance of making timely discovery; a continued internment in this camp, and there was left nothing but the distress of defeat and the reverse flight to Warsaw.

Would the streak of luck that in the first place had shunted the lads into the coveted aeroplane space be extended?

It so developed that that was just what happened, and Salisky was the early bird who brought the good news to the blanket bedsides of the drowsy pilots.

“There is a regiment of Turkomans reported on the move, riding up to the north line, and there is an order out for aeroplane service to convey directions to these troops from headquarters. Marovitch and I have the assignment—and that means our pilots, too.”

“Doesn’t that cover the route to Petrograd?” quickly questioned Billy.

“As far as two hundred and fifty miles,” advised Salisky.

“Bully! Do you hear that, Henri?”

“Well, I guess yes, Buddy.”