ardship to keep up with their pacemaker. On the contrary, three
at least enjoyed the expedition and found their spirits uplifted by
the zest of this unexpected adventure undertaken at 2 o'clock in the
morning.

When they drew near the first of the two horns enclosing the little
bay known as Starfish Cove, Bob pulled up, and the others came to a
halt around him.

"Just ahead there," said Bob, pointing, and addressing Captain Folsom,
"lies our destination. I expect it would not be wise to make our way
any farther along the sands."

Captain Folsom nodded.

"Right. We'll take to those trees up yonder. I'll go first with Jack."
Unconsciously, he had taken to addressing the boys by their given
names. "Do you others keep close behind."

In this order they started making their way through the grove, just
inside the outer belt of trees. The moonlight was bright on the water
and the sands, and illuminated the aisles of the grove in fairylike
fashion.

"Keep low and take advantage of cover," whispered Captain Folsom, as
he saw how the matter stood. And crouching and darting from tree to
tree, they worked their way forward until a low exclamation from Jack
halted his companion who was a bit behind him. The others came up.

"Fence," whispered Jack, succinctly.

Sure enough. There it was, just ahead, a high wire fence, the strands
barbed and strung taut on steel poles.

"We can't see the Cove yet from here," whispered Jack. "Our first
glimpse of it won't come until we move forward a bit farther. We'll
either have to try to climb over this or go out on the beach to get
around it. It doesn't go down to the water, does it, Bob?"

"No, and I didn't see it when I was here several days ago," Bob
replied in a low voice. "I suppose it must have been here then, but I
didn't see it. There was no fence on the beach, and I was following
the water's edge."

"There's a big tree close to it," said Frank, pointing. "And, look.
There's a limb projects over the fence. We might shin up the tree and
out on that limb and drop."

"I'm afraid I couldn't do it," said Captain Folsom, simply. "This
arm----"

"Oh, I forgot," said the sensitive Frank, with quick compunction,
silently reproaching himself for thus reminding the other of his
loss.

"I'm not sensitive," said Captain Folsom, and added grimly: "Besides,
the German that took it, paid with his life."

There was an awkward silence.

"Anyhow," said Jack, breaking it, "it would be t