he little patrol looked

are to use the dollar again. Besides, it would be too dangerous. If the message were on paper, the paper could be burn

d Willie, "but I'm sure they write

on dollars and sends them through this grocer's boy and the motor-car driver to the various secret wireless plants the Germans evidently possess near New York. I think that is plain. And it indicate

he struck a tragic attitude and declaimed, "Little do the treacherous hawks in

must have wings. Are mine sprouting yet?" And he

t remains to be done. And so far you have worked in safety. The work ahead may be very dangerous. The hidden wireless stations we are after are probably in lonely places. The men operating

ather they were looks of determination-the same set marks of grim purpose that Captain Hardy had seen on these

have to follow that automobile driver," he said, "i

ain Hardy. "But there are several matters that we can decide at once. I think

's nest," in

llar away from him, or we might get it away from him by trickery and substitute another dollar for the stolen one. We might even be able to pick the grocer's pocket and give him a substitute coin. But neither plan would help us because the trick would soon be discovered and the spies would know that they are suspected. It wouldn't do us any good to get their c

room, as though lost in thought. His companions were

h, "a long task and, from now on, a dangerous task. Whatever you do, boys, remember the

being detected. So I am going over to Manhattan to see the agent the Chief has put in charge of this investigation.

hough they listened faithfully at the wireless and uninterruptedly watched the hawk's nest on the cliff b

time; and that if they obeyed those orders faithfully and intelligently, success would follow. But Captain Hardy was different in many respects from other commanders, and his subordinates were not at all like ordinary privates in an army. T

at they could be folded into small size without injuring the maps themselves. Thus the bearer could always follow his route, whether h

pography of the city's environs as once they had studied the city itself. Marked to show altitudes, roads, byways, rivers, streams, marshes, woodlands, an

f rocks and hills, the impressive Palisades flanking its western bank with their towering perpendicular walls of stone; and the rocky, rolling country lying west of them, interspersed with streams and swamps and woodlands and open fields and clustered villages. And when they had finished their study of the maps, they knew more about the topography

boys again and again examined them-Captain Hardy folded the maps and thrust t

ar investigation. Our discovery seems to me so important that I ventured to ask why the secret service men didn't take the case up themselves, as they would no doubt get along much faster than we possibly can.

dignation. "Doesn't the secret service con

ng to create riots, to blow up buildings, to burn factories. They destroyed almost a million bushels of wheat in one fire recently. So you see that the secret service first must watch the enemies that are trying to destr

found out about this

says, 'I have some sugar on the way. Do you want any?' And the grocer replies, 'Yes. How many barrels can you let me have?' And the man in Hoboken gives the number. That number corresponds with the number of transports about to sail. So you see how the grocer knows when to send his boy for the wireless messages. But before he sends him, he always telep

es the telephoning?" demanded Roy,

es me that they'll have him soon. He always telephones from a station close to the piers where the transports load. The next time he calls for the grocer,

we're to do a little motor-cycle work ourselves, and that Henry has

natural mechanics who seem to know instinctively how to handle tools and make things. Indeed he had constructed his own wireless outfit and shown his fel

k or clever as Roy, Henry was a keen observer and close reasoner. Moreover, he was entirely dependable, was very

ined Captain Hardy to the little group of scouts. "And Henry is to do the trailing. Come, Henry. We'll

s house?" aske

he corner from the grocer's. It will a

t him somewhat enviously. "Remember," said their leader, turning about, "e

ade their way by a roundabout route and kept a sharp lookout lest they should meet the grocer or his boy. But they passed almost no one and came soon to a little white house, no

heir knock at the door and l

Sugar Company," said Captain Hardy, repeating t

he woman. "Come in." And she led them

mand that was likely to be made upon them. Evidently the engine was one of great power. The frame of the machine was a dark gray; and Henry instantly noted the fact that there was an almost utter absence of nickel about the motorcycle. The spokes, handle-bars, and trimmings were all enameled black. The headlight was a powerful e

den, noting what seemed to be an ext

ee," said Captain

ings, to see how the extra tubing w

id, puzzled. "What is

at lay coiled on a near-by chair, and something that looked like a giant fountain pen. He hande

directed Captain Hardy. "Carry them with you so that you can run to you

nd seemed to be a part of it. Then Captain Hardy fastened the little map case a

r. Then you must follow him wherever he goes. You must watch every movement he makes. But you must n

shed in Henry's eyes. "I'll

added, with a smile, "Now we'll go back to the