No one caught a glimpse of the sinister foundation. And moreover, who could have guessed such a thing? There are marshes of this description in India. The water seems extraordinary, inexplicable, rippling though there is no wind, and agitated where it should be calm. One gazes at the surface of these causeless ebullitions; one does not perceive the hydra which crawls on the bottom.
Many men have a secret monster in this same manner, a dragon which gnaws them, a despair which inhabits their night. Such a man resembles other men, he goes and comes. No one knows that he bears within him a frightful parasitic pain with a thousand teeth, which lives within the unhappy man, and of which he is dying. No one knows that this man is a gulf. He is stagnant but deep. From time to time, a trouble of which the onlooker understands nothing appears on his surface. A mysterious wrinkle is formed, then vanishes, then reappears; an air-bubble rises and bursts. It is the breathing of the unknown beast.