Grant (grantly)

Klausner sat down beside the telephone and waited. He tried to remember what the shriek of the tree had sounded like, but he couldn't. He could remember only that it had been enormous and frightful and that it had made him feel sick with horror. He tried to imagine what sort of noise a human would make if he had to stand anchored to the ground while someone deliberately swung a small sharp thing at his leg so that the blade cut in deep and wedged itself in the cut. Same sort of noise perhaps?