hat the lioness hung upon the sill only
by her forepaws, Tarzan suddenly released his hold upon the brute.

With the quickness of a striking rattler he launched himself full upon
Sabor's back, his strong young arms seeking and gaining a full-Nelson
upon the beast, as he had learned it that other day during his bloody,
wrestling victory over Terkoz.

With a roar the lioness turned completely over upon her back, falling
full upon her enemy; but the black-haired giant only closed tighter his
hold.

Pawing and tearing at earth and air, Sabor rolled and threw herself
this way and that in an effort to dislodge this strange antagonist; but
ever tighter and tighter drew the iron bands that were forcing her head
lower and lower upon her tawny breast.

Higher crept the steel forearms of the ape-man about the back of
Sabor's neck. Weaker and weaker became the lioness's efforts.

At last Clayton saw the immense muscles of Tarzan's shoulders and
biceps leap into corded knots beneath the silver moonlight. There was
a long sustained and supreme effort on the ape-man's part--and the
vertebrae of Sabor's neck parted with a sharp snap.

In an instant Tarzan was upon his feet, and for the second time that
day Clayton heard the bull ape's savage roar of victory. Then he heard
Jane's agonized cry:

"Cecil--Mr. Clayton! Oh, what is it? What is it?"

Running quickly to the cabin door, Clayton called out that all was
right, and shouted to her to open the door. As quickly as she could
she raised the great bar and fairly dragged Clayton within.

"What was that awful noise?" she whispered, shrinking close to him.

"It was the cry of the kill from the throat of the man who has just
saved your life, Miss Porter. Wait, I will fetch him so you may thank
him."

The frightened girl would not be left alone, so she accompanied Clayton
to the side of the cabin where lay the dead body of the lioness.

Tarzan of the Apes was gone.

Clayton called several times, but there was no reply, and so the two
returned to the greater safety of the interior.

"What a frightful sound!" cried Jane, "I shudder at the mere thought of
it. Do not tell me that a human throat voiced that hideous and
fearsome shriek."

"But it did, Miss Porter," replied Clayton; "or at least if not a human
throat that of a forest god."

And then he told her of his experiences with this strange creature--of
how twice the wild man had saved his life--of the wondrous st