Fear had lurked on Tempest Mountain for more than a century. This I learned at once from newspaper accounts of the catastrophe which first brought the region to the world's notice. The place is a remote, lonely elevation in that part of the Catskills where Dutch civilization once feebly and transiently penetrated, leaving behind as it receded only a few ruined mansions and a degenerate squatter population inhabiting pitiful hamlets on isolated slopes. Normal beings seldom visited the locality till the state police were formed, and even now only infrequent troopers patrol it. The fear, however, is an old tradition throughout the neighboring villages; since it is a prime topic in the simple discourse of the poor mongrels who sometimes leave their valleys to trade hand-woven baskets for such primitive necessities as they can not shoot, raise, or make. The lurking fear dwelt in the shunned and deserted Martense mansion, which crowned the high but gradual eminence whose liability to frequent thunderstorms gave it the name of Tempest Mountain. For over a hundred years the antique, grove-circled stone house had been the subject of stories incredibly wild and monstrously hideous; stories of a silent colossal creeping death which stalked abroad in summer. With whimpering insistence the squatters told tales of a demon which seized lone wayfarers after dark, either carrying them off or leaving them in a frightful state of gnawed dismemberment; while sometimes they whispered of blood-trails toward the distant mansion. Some said the thunder called the lurking fear out of its habitation, while others said the thunder was its voice. No one outside the backwoods had believed these varying and conflicting stories, with their incoherent, extravagant descriptions of the half-glimpsed fiend; yet not a farmer or villager doubted that the Martense mansion was ghoulishly haunted. Local history forbade such a doubt, although no ghostly evidence was ever found by such investigators as had visited the building after some especially vivid tales of the squatters. Grandmothers told strange myths of the Martense specter; myths concerning the Martense family itself, its queer hereditary dissimilarity of eyes, its long, unnatural annals, and the murder which had cursed it. The terror which brought me to the scene was a sudden and portentous confirmation of the mountaineers' wildest legends. One summer night, after a thunderstorm of unprecedented violence, the countryside was aroused by a squatter stampede which no mere delusion could create. The pitiful throngs of natives shrieked and whined of the unnamable horror which had descended upon them, and they were not doubted. They had not seen it, but had heard such cries from one of their hamlets that they knew a creeping death had come.