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Rh as though he were relating the experiences of someone else, whose cares were nothing to him. Indeed, Joan had noticed, ever since Keith arrived at Tao Tao, that there had been a gradual change creeping over him. At first he was preternaturally serious, and there was a hard look about his mouth which only relaxed in rare moments of merriment. Nowadays he was becoming more human. The careworn expression flitted across his face like a shadow at odd moments, as when he was gazing out into the unknown, over and beyond the horizon, but it vanished as quickly as it came. Joan never tried to peer under that mask of gloom which dropped over his face at times. His thoughts were his exclusive property, even as hers were her own. There were times when she wondered vaguely what memories of the past conjured such dark thoughts up in this strong man's brain. At first it had crossed her mind that some separation, enforced by his remaining on the island, had something to do with it, but that seemed less likely when he settled down there in apparent contentment. He never even expressed a desire to go to Tamba, there to wait for the possible appearance of a vessel, which was more likely than at Tao Tao, for there were several plantations on Tamba, and half a dozen schooners dropped anchor there in the course of a year, on the lookout for cargo. Joan felt instinctively, moreover, that