where they were at
work he could neither see nor tell. Still he lay there watching and
listening, and by-and-by a puff of warm air blew across the sand, and a
thumping tumble of louder thunder leaped from out the belly of the
storm cloud, which every minute was coming nearer and nearer. Still Tom
Chist lay watching.

Suddenly, almost unexpectedly, the three figures reappeared from behind
the sand-hill, the pirate captain leading the way, and the negro and
white man following close behind him. They had gone about half-way
across the white, sandy level between the hill and the hummock behind
which Tom Chist lay, when the white man stopped and bent over as though
to tie his shoe.

This brought the negro a few steps in front of his companion.

That which then followed happened so suddenly, so unexpectedly, so
swiftly, that Tom Chist had hardly time to realize what it all meant
before it was over. As the negro passed him the white man arose
suddenly and silently erect, and Tom Chist saw the white moonlight
glint upon the blade of a great dirk-knife which he now held in his
hand. He took one, two silent, catlike steps behind the unsuspecting
negro. Then there was a sweeping flash of the blade in the pallid
light, and a blow, the thump of which Tom could distinctly hear even
from where he lay stretched out upon the sand. There was an instant
echoing yell from the black man, who ran stumbling forward, who
stopped, who regained his footing, and then stood for an instant as
though rooted to the spot.

Tom had distinctly seen the knife enter his back, and even thought that
he had seen the glint of the point as it came out from the breast.

Meantime the pirate captain had stopped, and now stood with his hand
resting upon his cane looking impassively on.

Then the black man started to run. The white man stood for a while
glaring after him; then he too started after his victim upon the run.
The black man was not very far from Tom when he staggered and fell. He
tried to rise, then fell forward again, and lay at length. At that
instant the first edge of the cloud cut across the moon, and there was
a sudden darkness; but in the silence Tom heard the sound of another
blow and a groan, and then presently a voice calling to the pirate
captain that it was all over.

He saw the dim form of the captain crossing the level sand, and then,
as the moon sailed out from behind the cloud, he saw the white man
standing over a black figure th