very eye turned toward one member of the herd, a large
fellow who evidently was the leader. A strange purring sound issued
from the mouth in the palm of one of his hands, and at the same time he
started rapidly toward the bluff, followed by the entire herd.

Their speed and method of locomotion were both remarkable, springing as
they did in great leaps of twenty or thirty feet, much after the manner
of a kangaroo.

They were rapidly disappearing when it occurred to me to follow them,
and so, hurling caution to the winds, I sprang across the meadow in
their wake with leaps and bounds even more prodigious than their own,
for the muscles of an athletic Earth man produce remarkable results
when pitted against the lesser gravity and air pressure of Mars.

Their way led directly towards the apparent source of the river at the
base of the cliffs, and as I neared this point I found the meadow
dotted with huge boulders that the ravages of time had evidently
dislodged from the towering crags above.

For this reason I came quite close to the cause of the disturbance
before the scene broke upon my horrified gaze. As I topped a great
boulder I saw the herd of plant men surrounding a little group of
perhaps five or six green men and women of Barsoom.

That I was indeed upon Mars I now had no doubt, for here were members
of the wild hordes that people the dead sea bottoms and deserted cities
of that dying planet.

Here were the great males towering in all the majesty of their imposing
height; here were the gleaming white tusks protruding from their
massive lower jaws to a point near the centre of their foreheads, the
laterally placed, protruding eyes with which they could look forward or
backward, or to either side without turning their heads, here the
strange antennae-like ears rising from the tops of their foreheads; and
the additional pair of arms extending from midway between the shoulders
and the hips.

Even without the glossy green hide and the metal ornaments which
denoted the tribes to which they belonged, I would have known them on
the instant for what they were, for where else in all the universe is
their like duplicated?

There were two men and four females in the party and their ornaments
denoted them as members of different hordes, a fact which tended to
puzzle me infinitely, since the various hordes of green men of Barsoom
are eternally at deadly war with one another, and never, except on that
single historic