It was Valeria who exclaimed, but they both started violently, and Conan wheeled like a cat, his great sword flashing into his hand. Back in the forest had burst forth an appalling medley of screams--the screams of horses in terror and agony. Mingled with their screams there came the snap of splintering bones. "Lions are slaying the horses!" cried Valeria. "Lions, nothing!" snorted Conan, his eyes blazing. "Did you hear a lion roar? Neither did I! Listen at those bones snap--not even a lion could make that much noise killing a horse." * * * * * He hurried down the natural ramp and she followed, their personal feud forgotten in the adventurers' instinct to unite against common peril. The screams had ceased when they worked their way downward through the green veil of leaves that brushed the rock. "I found your horse tied by the pool back there," he muttered, treading so noiselessly that she no longer wondered how he had surprised her on the crag. "I tied mine beside it and followed the tracks of your boots. Watch, now!" They had emerged from the belt of leaves, and stared down into the lower reaches of the forest. Above them the green roof spread its dusky canopy. Below them the sunlight filtered in just enough to make a jade-tinted twilight. The giant trunks of trees less than a hundred yards away looked dim and ghostly. "The horses should be beyond that thicket, over there," whispered Conan, and his voice might have been a breeze moving through the branches. "Listen!" Valeria had already heard, and a chill crept through her veins; so she unconsciously laid her white hand on her companion's muscular brown arm. From beyond the thicket came the noisy crunching of bones and the loud rending of flesh, together with the grinding, slobbering sounds of a horrible feast. "Lions wouldn't make that noise," whispered Conan. "Something's eating our horses, but it's not a lion--Crom!" The noise stopped suddenly, and Conan swore softly. A suddenly risen breeze was blowing from them directly toward the spot where the unseen slayer was hidden. "Here it comes!" muttered Conan, half lifting his sword. The thicket was violently agitated, and Valeria clutched Conan's arm hard. Ignorant of jungle-lore, she yet knew that no animal she had ever seen could have shaken the tall brush like that. "It must be as big as an elephant," muttered Conan, echoing her thought. "What the devil----" His voice trailed away in stunned silence. Through the thicket was thrust a head of nightmare and lunacy. Grinning jaws bared rows of dripping yellow tusks; above the yawning mouth wrinkled a saurian-like snout. Huge eyes, like those of a python a thousand times magnified, stared unwinkingly at the petrified humans clinging to the rock above it. Blood smeared the scaly, flabby lips and dripped from the huge mouth.