re the means of giving us immediate entrance to the chamber, and very
quickly we were thoroughly outfitted with arms and ammunition.

By this time I was so thoroughly fagged out that I could go no further,
so I threw myself upon the floor, bidding Tars Tarkas to do likewise,
and cautioning two of the released prisoners to keep careful watch.

In an instant I was asleep.

CHAPTER V

CORRIDORS OF PERIL

How long I slept upon the floor of the storeroom I do not know, but it
must have been many hours.

I was awakened with a start by cries of alarm, and scarce were my eyes
opened, nor had I yet sufficiently collected my wits to quite realize
where I was, when a fusillade of shots rang out, reverberating through
the subterranean corridors in a series of deafening echoes.

In an instant I was upon my feet. A dozen lesser therns confronted us
from a large doorway at the opposite end of the storeroom from which we
had entered. About me lay the bodies of my companions, with the
exception of Thuvia and Tars Tarkas, who, like myself, had been asleep
upon the floor and thus escaped the first raking fire.

As I gained my feet the therns lowered their wicked rifles, their faces
distorted in mingled chagrin, consternation, and alarm.

Instantly I rose to the occasion.

"What means this?" I cried in tones of fierce anger. "Is Sator Throg
to be murdered by his own vassals?"

"Have mercy, O Master of the Tenth Cycle!" cried one of the fellows,
while the others edged toward the doorway as though to attempt a
surreptitious escape from the presence of the mighty one.

"Ask them their mission here," whispered Thuvia at my elbow.

"What do you here, fellows?" I cried.

"Two from the outer world are at large within the dominions of the
therns. We sought them at the command of the Father of Therns. One
was white with black hair, the other a huge green warrior," and here
the fellow cast a suspicious glance toward Tars Tarkas.

"Here, then, is one of them," spoke Thuvia, indicating the Thark, "and
if you will look upon this dead man by the door perhaps you will
recognize the other. It was left for Sator Throg and his poor slaves
to accomplish what the lesser therns of the guard were unable to do--we
have killed one and captured the other; for this had Sator Throg given
us our liberty. And now in your stupidity have you come and killed all
but myself, and like to have killed the mighty Sator Throg himself."

The me