"At ten o'clock then, my man," were the last words of the Preventive officer; but he added to his companion as they walked away: "The dirty double-mouth!" and the distaste of the official for the necessary informer was in his voice. "At ten o'clock," echoed Robin, and then was aware of a quick rustling behind him--much the noise that a big adder makes as it leaves its way through a dry tuft of grass. The sun was already setting, and the glamorous light made vision uncertain, yet Robin thought he saw a movement of the gorse more than the breeze warranted. The bush in question was one of those which concealed an opening to the caves, and Robin pulled it aside and peered into the darkness. Silence and stillness rewarded him, and he swung his legs over and descended a little way. All was quiet and empty in that passage; he turned into another--that, too, was innocent of any presence save his. He went through up that exit, and, still uneasy, stared across the moor. If anyone--if by chance Thomasin had been in the passage, she could have slipped out that way while he was entering by the other, and be out of sight by now. . . . The sweat sprang on to Robin's brow. Then he took counsel with himself. There was no reason why Thomasin should be at the caves; nothing was doing there. It would be the most unlikely thing on earth, because neither she nor her father ever ran the unnecessary risk of going there between the cargoes. Robin knew this, and felt reassured--how, after all, could he imagine that Thomasin, sick at the reaction she felt in him, might have gone to re-gather force at the place where she had first felt him hers? . . . He thought over what he had said, and took still more heart when he remembered he had not let fall a word that showed a light holding of Thomasin; and that, he told himself, was the only thing a woman could not forgive. He felt it safe to count on passion as against the habit of a mere business partnership, which was all her relationship with her father had ever been. Dimly Robin was aware that all her spiritual life had gone into that partnership, into the feeling of her family against the world that had become an obsession with her until he had brought another interest into her life; but Robin Start would not have believed an angel from heaven who had told him that the habit of years could be stronger with a woman than a new passion. And, as regarded most women, Robin would probably have been right. Besides, it was impossible that any one could have been there, and Thomasin was his. . . . He gave himself a little shake and set off to the cottage, and such was the force of his revulsion against a life of dangers and the sinister suggestiveness of the Keasts' muscular superiority, that he felt his heart lighter than it had been for months past. He was even pleasurably, though subconsciously, aware of the poignant beauty of the evening, and noted the rich shrilling of a thrush from the alders by the stream.