This proved however to be a second passage, which evidently ascended. It terminated like the former; though something approaching to a ray, we could not tell whence, shed a very doubtful twilight in the space. By degrees, our eyes grew somewhat accustomed to this dimness, and we perceived that there was no direct passage leading us further; but that it was possible to climb one side of the cavern to a low arch at top, which promised a more easy path, from whence we now discovered that this light proceeded. With considerable difficulty we scrambled up, and came to another passage with still
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