r quests for adventure."

"You seem to have found adventure all right!" smiled Ed.

"You bet we have!" replied Will.

The boys made still another inspection of the spot where the cliff had
fallen, and thought that they heard a faint call from the inside.

"They are there!" cried Will. "I'm sure they're there, and alive!"

"But they can't live there very long!" suggested Ed. "So we'd better be
doing something to get them, out!"

"The first thing to do," Will stated, "is to signal to the other
fellows. I'm sure Tommy and Frank must be in with the surgeon before
this!"

"There'll be plenty of work for the surgeon, I imagine," Ed added.

"I'm afraid so," Will admitted.

"But how are you going to signal to the cabin?" asked Ed.

"Indian smoke signals!" was the reply.

Almost before the words were out of Will's mouth, Ed was gathering both
dry and green branches from the thicket.

"If the boys are at the cabin, or even on their way there," Will
continued, "they'll be sure to see the signal, for the night is not so
very dark now, and the land where we are is considerably higher than the
moraine upon which the cabin is built. We'll have to get a blazing fire
of dry wood and then pile on green branches."

"That ought to make a smudge visible ten miles off!" said Ed.

"Not quite so far as that!" smiled Will, "but it's a sure thing the
signals ought to be seen as far as the cabin."

"Perhaps this earthquake shook the cabin down," suggested Ed. "I heard a
racket over to the south which seemed to indicate that the moraine was
being crumpled up like a piece of leather in a blaze."

"It seems to me," Will agreed, "that the earthquake did change the map
of Alaska in some particulars. Now, if you've got enough dry wood, we'll
start the fire and in five minutes we'll be ready for the green boughs!"

Two roaring fires were soon going on the mountainside, and then both
Cameron and Fenton pleaded to be assisted nearer to the circle of
warmth. They were both shivering with the cold.

"We ought to give you a swift toss into the blaze!" exclaimed Will. "And
we may do it, too," he went on, "if we find that our chums have been
brought to their death by your abducting them!"

"We had nothing to do with their being in the cave!" lied Cameron.

"What were you doing in the edge of the thicket?" asked Ed.

"We were watching you and your friends," was the reply. "We thought that
you were in quest of our mine!"

"Did you see t