Its greenish-gray walls and low ceiling were exceedingly smooth, as if they had been carved by a master stonemason who had exquisitely polished them countless times. Despite their appearance, Hunter wasn't impressed. They were characteristic of the entry passages of a number of other lesser caverns he had explored on the planet. As reflections of greenish-white light from Hunter's symotes, small lights attached to the shoulders of his jacket, danced across the shiny surface of the walls, Hunter realized his lights were operating in the wrong wavelengths. The light should have been bluish-white, not green. Figuring their auto-sensing mechanism was out of calibration, he stopped hiking and began adjusting the controls of a modulator attached to his belt. Symotes. An innovative, though dated technology, they eliminated the need for hardhat or other light sources and added significantly to one's perception of the caverns. They were synchronized with eye and head motion through nerve impulses picked up by contact lens-like receptors and would change spectral ranges to enhance the definition of the features surrounding him.
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