The slayer had stepped into the pool of blood in which the dead man sprawled. Under the bushes at the edge of the path there was a footprint, made in blood on the hard loam. 'Did a man make that?' demanded Conan. Balthus felt his scalp prickle. Neither man nor any beast that he had ever seen could have left that strange, monstrous three-toed print, that was curiously combined of the bird and the reptile, yet a true type of neither. He spread his fingers above the print, careful not to touch it, and grunted explosively. He could not span the mark. 'What is it?' he whispered. 'I never saw a beast that left a spoor like that.' 'Nor any other sane man,' answered Conan grimly. 'It's a swamp demon--they're thick as bats in the swamps beyond Black River. You can hear them howling like damned souls when the wind blows strong from the south on hot nights.' 'What shall we do?' asked the Aquilonian, peering uneasily into the deep blue shadows. The frozen fear on the dead countenance haunted him. He wondered what hideous head the wretch had seen thrust grinning from among the leaves to chill his blood with terror. 'No use to try to follow a demon,' grunted Conan, drawing a short woodsman's ax from his girdle. 'I tried tracking him after he killed Soractus. I lost his trail within a dozen steps. He might have grown himself wings and flown away, or sunk down through the earth to Hell. I don't know. I'm not going after the mule, either. It'll either wander back to the fort, or to some settler's cabin.' As he spoke Conan was busy at the edge of the trail with his ax. With a few strokes he cut a pair of saplings nine or ten feet long, and denuded them of their branches. Then he cut a length from a serpent-like vine that crawled among the bushes near by, and making one end fast to one of the poles, a couple of feet from the end, whipped the vine over the other sapling and interlaced it back and forth. In a few moments he had a crude but strong litter. 'The demon isn't going to get Tiberias' head if I can help it,' he growled. 'We'll carry the body into the fort. It isn't more than three miles. I never liked the fat fool, but we can't have Pictish devils making so cursed free with white men's heads.' The Picts were a white race, though swarthy, but the border men never spoke of them as such. Balthus took the rear end of the litter, onto which Conan unceremoniously dumped the unfortunate merchant, and they moved on down the trail as swiftly as possible. Conan made no more noise laden with their grim burden than he had made when unencumbered. He had made a loop with the merchant's belt at the end of the poles, and was carrying his share of the load with one hand, while the other gripped his naked broadsword, and his restless gaze roved the sinister walls about them. The shadows were thickening. A darkening blue mist blurred the outlines of the foliage. The forest deepened in the twilight, became a blue haunt of mystery sheltering unguessed things.