CHAPTER VI. "KNOWLEDGE IS NOT ALWAYS PROOF." If there was one desire more paramount than another in Julian's mind--as now they threaded a campeachy wood dotted here and there with clumps of cabbage palms while, all around, in the underbrush and pools, the Caribbean lily grew in thick and luxurious profusion--that desire was to be alone. To be able to reflect and to think uninterruptedly, and without being obliged at every moment to listen to his companion's flow of conversation--which was so unceasing that it seemed forced--as well as obliged to answer questions and to display an interest in all that was being said. Julian felt, perhaps, this desire the more strongly because, by now, he was gradually becoming able to collect himself, to adjust his thoughts and reflections and, thereby, to bring a more calm and clear insight to bear upon the discovery--so amazing and surprising--which had come to his knowledge but an hour or so ago. If he were alone now, he told himself, if he could only get half-an-hour's entire and uninterrupted freedom for thought, he could, he felt sure, review the matter with coolness and judgment. Also, he could ponder over one or two things which, at this moment, struck him with a force they had not done at the time when they had fallen with stunning--because unexpected--force upon his brain. Things--namely words and statements--that might go far towards explaining, if not towards unravelling, much that had hitherto seemed inexplicable. Yet, all the same, he was obliged to confess to himself that one thing seemed absolutely incapable of explanation. That was, how this man could be the child of Charles Ritherdon, the late owner of the vast property through which they were now riding, if his brother George had been neither demented nor a liar. And that Sebastian should have invented his statement was obviously incredible for the plain and simple reasons that he had made it before several witnesses, and that he was in full possession, as recognised heir, of all that the dead planter had left behind. It was impossible, however, that he could meditate--and, certainly, he could not follow any train of thought--amid the unfailing flow of conversation in which his companion indulged. That flow gave him the impression, as it must have given any other person who might by chance have overheard it, that it was conversation made for conversation's sake, or, in other words, made with a determination to preclude all reflection on Julian's part. From one