"It is permissible to say that, aside from the external appearance of face and hands, the really human element of Wilbur Whateley must have been very small"
In the rural Massachusetts town of Dunwich on February 2, 1913 at 5 a.m. Lavinia Whateley gave birth to a son, Wilbur Whateley. The date of his birth is noted for the night before the hills rumbled and dogs barked incessantly. Wilbur was immediately recognized for his hideousness, described as a "dark, goatish-looking infant".
He displayed unnaturally rapid physical and mental development: At seven months he could walk unassisted and eleven months could speak. At four and a half, he appeared fifteen and he began to grow facial hair.
"Though he shared his mother's and grandfather's chinlessness, his firm and precociously shaped nose united with the expression of his large, dark, almost Latin eyes to give him an air of..well-nigh preternatural intelligence,.. something almost goatish or animalistic about his thick lips, large-pored, yellowish skin, coarse crinkly hair, and oddly elongated ears."
At a young age he takes to wearing very coversome clothes. This was to conceal his inhuman anatomy. He also has revolting odor, a defining characteristic of the Old Ones.
Wilbur's voice is distinctive for its "Strange, resonant fashion which hinted at sound-producing organs unlike the run of mankind's". This presumably allows him to speak the language of the Old Ones.
Prior to his grandfather’s death he left him with the responsibility of raising his twin as well as ensuring he opens the gates of Yog-Sothoth. He could only accomplish this by finding the summoning ritual on page 751 of the Necronomicon. He then travelled to the Miskatonic, Cambridge, and Widener libraries in search of a complete version of this book. They all, under the guidance of Dr. Armitage, denied him access. He was then forced to return to Miskatonic University to steal their copy. This attempt ultimately proves his downfall, when a watchdog savagely kills him. His final words were the except from the Necronomicon which he had been searching. Immediately afterword his corpse disintegrated into a sticky white mass. Out the window a swarm of Whippoorwills were seen pursuing his fleeting soul. It is unknown if they succeeded in capturing it.