He buried his face guiltily in his hands as he tried to shut out the remembrance of how persistently of late, whithersoever he had turned, this second image had reappeared before him, growing always clearer, drawing always nearer, summoning him more luringly. Already he had begun to know the sensations of a traveller who is crossing sands with a parched tongue and a weary foot, crossing toward a country that he will never reach, but that he will stagger toward as long as he has strength to stand. During the past several days--following his last interview with Amy--he had realized for the first time how long and how plainly the figure of Mrs. Falconer had been standing before him and upon how much loftier a level. Many a time of old, while visiting the house, he had grown tired of Amy; but he had never felt wearied by her. For Amy he was always making apologies to his own conscience; she needed none. He had secretly hoped that in time Amy would become more what he wished his wife to be; it would have pained him to think of her as altered. Often he had left Amy's company with a grateful sense of regaining the larger liberty of his own mind; by her he always felt guided to his better self, he carried away her ideas with the hope of making them his ideas, he was set on fire with a spiritual passion to do his utmost in the higher strife of the world. For this he had long paid her the guiltless tribute of his reverence and affection. And between his reverence and affection and all the forbidden that lay beyond rose a barrier which not even his imagination had ever consciously overleaped. Now the forbidding barrier had disappeared, and in its place had appeared the forbidden bond--he knew not how or when. How could he? Love, the Scarlet Spider, will in a night hang between two that have been apart a web too fine for either to see; but the strength of both will never avail to break it.