The Whisperer in Darkness by H.P. Lovecraft

The unknown things, Akeley wrote in a script grown pitifully tremulous, had begun to close in on him with a wholly new degree of determination. The nocturnal barking of the dogs whenever the moon was dim or absent was hideous now, and there had been attempts to molest him on the lonely roads he had to traverse by day. On the second of August, while bound for the village in his car, he had found a tree-trunk laid in his path at a point where the highway ran through a deep patch of woods; while the savage barking of the two great dogs he had with him told all too well of the things which must have been lurking near. What would have happened had the dogs not been there, he did not dare guess-but he never went out now without at least two of his faithful and powerful pack. Other road experiences had occurred on August 5th and 6th; a shot grazing his car on one occasion, and the barking of the dogs telling of unholy woodland presences on the other.

On August 15th I received a frantic letter which disturbed me greatly, and which made me wish Akeley could put aside his lonely reticence and call in the aid of the law. There had been frightful happenings on the night of the 12-13th, bullets flying outside the farmhouse, and three of the twelve great dogs being found shot dead in the morning. There were myriads of claw-prints in the road, with the human prints of Walter Brown among them. Akeley had started to telephone to Brattleboro for more dogs, but the wire had gone dead before he had a chance to say much. Later he went to Brattleboro in his car, and learned there that linemen had found the main telephone cable neatly cut at a point where it ran through the deserted hills north of Newfane. But he was about to start home with four fine new dogs, and several cases of ammunition for his big-game repeating rifle. The letter was written at the post office in Brattleboro, and came through to me without delay.