now follow him voluntarily or if he must still resort to force.

Looking ruefully at the marks of his great teeth upon my bare arm
I decided to do as he seemed to wish me to do. After all, his strange
instinct might be more dependable than my faulty human judgment.

And well it was that I had been forced to follow him. But a
short distance from the circular chamber we came suddenly into a
brilliantly lighted labyrinth of crystal glass partitioned passages.

At first I thought it was one vast, unbroken chamber, so clear and
transparent were the walls of the winding corridors, but after I
had nearly brained myself a couple of times by attempting to pass
through solid vitreous walls I went more carefully.

We had proceeded but a few yards along the corridor that had given
us entrance to this strange maze when Woola gave mouth to a most
frightful roar, at the same time dashing against the clear partition
at our left.

The resounding echoes of that fearsome cry were still reverberating
through the subterranean chambers when I saw the thing that had
startled it from the faithful beast.

Far in the distance, dimly through the many thicknesses of intervening
crystal, as in a haze that made them seem unreal and ghostly, I
discerned the figures of eight people--three females and five men.

At the same instant, evidently startled by Woola's fierce cry, they
halted and looked about. Then, of a sudden, one of them, a woman,