ss patrol stared at one another in speechle

," he said. "I just know that th

t, when the wireless pointed

aw him watching the ships and there isn't any other place in the whole harbor where you

ouse and spy on ships that pass through the Narrows and then telephone to one of these secret wireless

t service could take his house to pieces and not find a wire in it. Ye

hadn't stumbled on this spy post at Staten Island, we should have been completely blocked ourselves. But we've got something definite to work on now. We've got a definite clue. And sooner or later we will uncover

g on the slope above the suspected house was a well-to-do but childless couple with a rather large house, who were warm friends of the Chief's; and they readily agreed, as a matter of service to their

ive, the task would have been anything but irksome. But to sit hour after hour with their instruments tuned to the short wave lengths used by the German agents and hear nothing, was trying enough. The watch on the spy's nest proved hardly less tedious. From a gable-window in the attic a very fair view could be had of

house. No man left it in the morning bound for business. No woman emerged from its door to go shopping of an

gable on watch and he promptly notified his comrades. There was a rush for the third story, and four heads crowded close together as four pairs of eyes

his field-glasses into Willie's hand, "and get the number of that car.

as he dared. But he had hardly reached his station when the driver ran down the steps of the house

ts number?" as

ouldn't tell what make of car it was. But I saw the driv

Hardy, "if he lives anywhere near he

mewhere," said Willie. "I wish

of life. But one afternoon the monotonous watch came to a sudden end. Lew, in the atti

use trail him. Now we'll find out whether this spy-if he be a spy-telephones his news or sends it out by

and Roy and Willie scrambled cautiously down to their favorite observation post in the pines. On came

red Willie. "Don't le

r nearer approach. The transports reached the narrowest part of the passage and still there was no sign of life in the little house. Willie gave a sigh of disappointment and started to speak; but befo

his excitement. "Now he's either telephoning his messa

ait. A figure was seen

id Willie in disappointment. "Th

e," said Roy. "Maybe the man in that house

st know he's a spy, but how he send

use trailing him," said Roy. "We already know who he is. While

ft the house," said Willie, "so I suppose we'll hav

e the loitering errand boy even came up into this higher road from the lower thoroughfare. But instead of entering the st

he counter. "Have you a

down a package o

e any loose on

e are all

take 'em," said Ro

there," was

and began to examine the stock.

sugar," he said, handing t

in and carelessly drop

stock of sweetmeats. "Give me five

A tall man with gauntlets and with m

aid jovially. "Got t

the grocer. "I haven't been ab

How much longer have I got to

rned

grocer. "Here's th

pulled the coin from his pocket and

ed weighing out the gum-drops for Roy, a

. "Well, what happened?" aske

r that he had collected for sugar. Pretty soon an automobile driver came in to get so

matter over in his mind. "The

e candy and the grocer put the mon

bstractedly, as he tried to read some meaning

llar the errand boy gave him into the d

ned when I was in there the oth

ines. It was past time to relieve Henry at the wireless. The two scouts climbed to t

called. "I've got

d the long string of letters written on it. Quickly he rearranged them in four equal lines. Then slowly

ome from?" he demanded, a

coast," said Henry, "and probably

imply up against it," said Lew de

cry. "I've got it! I've got it!" he almo

asked Roy,

uestion. "What sort of a looking

r and with a big scar on his c

it! Now I know how the messages are

m. "What do you mean?" said Ca

for candy he dropped it in his till. Just after I left the store and turned the corner a man drove up in a motor. I noticed him because he turned his car completely around and stopped at the curb. He got out

id their le

, which he said he had collected for sugar. The grocer dropped the coin in his pocket, but he put Roy's nickel in his drawer. A minute later an auto

rupted Captain Hardy. "Y

saw, and it's the man who drove up to the house on the cliff the other day. I knew that I had seen h

him? The grocer could owe hi

it to the grocer. He gave it to the motor driver. It's the same dollar. He didn't put it in the till with the other coins. He kept it