"That may work," Solomon acknowledged, "but the important part is that the materials are contrasting black and white, and retain similar consistencies. I'd be concerned that whatever strength brought to bear on the obsidian would cause significant colour change." Perhaps if he used shadow to break the stone it would retain its colour despite being dust, but even still, he'd much prefer the pieces be kept in some definable shape.

There came a rustle of feathers and the bird exited the mine with a swoop, landing on Solomon's shoulder. Its feathers hadn't changed at all. "It's safe to breathe," he said, "and theoretically is safe to pass up until the first intersection."

Flashlights weren't exactly readily available in Keeliai, but Solomon drew shadows around him to act as a kind of radar so he didn't at least trip, and could sense the open space around him, narrow though it was. Bakura's light, if the thief had one--he would, of course--would throw them into stark relief, but shouldn't banish them entirely.