Together, Craig and I descended into the darkness about eight or
ten feet. There we found a passageway, excavated through the earth
and rock, along which we crept. It was crooked and uneven, and we
stumbled, but kept going slowly ahead.

Kennedy, who was a few feet in front of me, stopped suddenly and I
almost fell over him.

"What is it?" I whispered.

. . . . . . .

Long Sin had made his way from the opening of the cave to the
point on the plan which was marked by a cross, and there he had
set up his electric drill which was connected to the trolley wire.
He was working furiously to take advantage of the fifteen minutes
or so before the next car would pass.

The tunnel had been widened out at this point into a small
subterranean chamber. It was dug out of the earth and the roof was
roughly propped up, most of the weight being borne by one main
wooden prop which, in the dampness, had now become old and rotten.

On one side it was evident that Long Sin had already been at work,
digging and drilling through the earth and rock. He had gone so
far now that he had disclosed what looked like the face of a small
safe set directly into the rock.

As he worked he would stop from time to time and consult the map.
Then he would take up drilling again.