were being spied upon.

In order to save time, as soon as they got to the nearest small
settlement, Joe and Blake hired a carriage, and drove to the lighthouse.
As may well be imagined their report caused considerable excitement.

"We'll get right after 'em!" cried Tom Cardiff. "I just got a telephone
message from the secret service men that they are on their way here.
They'll arrive in about an hour. We were counting on getting on the
trail ourselves to-day, but you boys got ahead of us. So in about an
hour we'll start. I guess they'll be there then; won't they, lads."

"I should judge so," was Blake's answer. "They've got quite a good deal
yet to do to get that fake lantern in shape, and they don't seem
suspicious."

"We can't have our life saving friend with us now," went on the
assistant keeper, "as he is on duty, but I guess the five of us will be
enough."

"Say!" cried Blake, with sudden thought, "if it's going to be an hour
before we start we've got time to get our automatic moving picture
camera, Joe."

"What for?"

"To get some views of this capture. It ought to make a dandy film, and
we can set the machine in place, start the motor and then you and I can
jump in and help catch these wreckers!"

"The very thing!" cried his chum. "I wonder I didn't think of it myself.
Come on!"

"Don't be late!" advised Tom Cardiff, as they ran toward the ancient
carriage they had hired. "We don't want any slip-up this time. I'm glad
we're going to try for the capture by daylight, though, instead of
darkness; it gives us a better chance."

Mr. Ringold and Mr. Hadley were surprised and delighted at the news the
boys brought, but they voted against the automatic camera.

"This is a rare chance to get a film," said Mr. Hadley, "and we don't
want to miss it. I'll go along with you, taking a regular moving picture
camera, and while you capture the wreckers I'll make a film of it."

This suited the boys as well, and a little later, with the chief
photographer, they started back for the lighthouse. They found the
secret service men and Tom Cardiff waiting for them, and, well armed, in
addition to the clubs they carried, and with ropes to bind the wreckers,
they started off.

"We're almost there now," said Blake, in a whisper, when they neared the
second hiding place of the desperate men. "Go easy, now."

"Let me get a chance to go ahead and place the camera," suggested Mr.
Hadley, who had the apparatus fully adjuste