Before him he could hear the occasional low moans of the banth, and presently from behind came a similar uncanny note. Another banth had entered the passageway on his trail!
His position was anything but pleasant. His eyes could not penetrate the darkness even to the distinguishing of his hand before his face, while the banths, he knew, could see quite well, though absence of light were utter.
No other sounds came to his ears than the dismal, bloodthirsty moanings of the beast ahead and the beast behind.
The tunnel had led straight, from where he had entered it beneath the side of the rock furthest from the unscaleable cliffs, toward the mighty barrier that had baffled him so long.
Now it was running almost level, and presently he noted a gradual ascent.
The beast behind him was gaining upon him, crowding him perilously close upon the heels of the beast in front. Presently he should have to do battle with one, or both. More firmly he gripped his weapon.
Now he could hear the breathing of the banth at his heels. Not for much longer could he delay the encounter.
Long since he had become assured that the tunnel led beneath the cliffs to the opposite side of the barrier, and he had hoped that he might reach the moonlit open before being compelled to grapple with either of the monsters.
The sun had been setting as he entered the tunnel, and the way had been sufficiently long to assure him that darkness now reigned upon the world without. He glanced behind him. Blazing out of the darkness, seemingly not ten paces behind, glared two flaming points of fire. As the savage eyes met his, the beast emitted a frightful roar and then he charged.
To face that savage mountain of onrushing ferocity, to stand unshaken before the hideous fangs that he knew were bared in slavering blood-thirstiness, though he could not see them, required nerves of steel; but of such were the nerves of Carthoris of Helium.