Another horrid creature called out of the forest by Zogar Sag to do his bidding. Like the saber-tooth tiger, the ghost snake new Jhebbal Sag and the the ancient language, the language that all creatures spoke in ancient times.
“Again Balthus recognized the monster from ancient legends. He saw and knew the ancient and evil serpent which swayed there, its wedge-shaped head, huge as that of a horse, as high as a tall man's head, and its palely gleaming barrel rippling out behind it. A forked tongue darted in and out, and the firelight glittered on bared fangs.
Balthus became incapable of emotion. The horror of his fate paralyzed him. That was the reptile that the ancients called Ghost Snake, the pale, abominable terror that of old glided into huts by night to devour whole families. Like the python it crushed its victim, but unlike other constrictors its fangs bore venom that carried madness and death. It too had long been considered extinct. But Valannus had spoken truly. No white man knew what shapes haunted the great forests beyond Black River.
It came on silently rippling over the ground, its hideous head on the same level, its neck curving back slightly for the stroke. Balthus gazed with glazed, hypnotized stare into that loathsome gullet down which he would soon be engulfed, and he was aware of no sensation except a vague nausea."
Chapter 4: The Beasts of Zogar Sag, Beyond the Black River, Robert E. Howard.