Father and son had seated themselves on a projecting piece of rock
at a corner where three galleries met - the one they had come along
from their work, one to the right leading out of the mountain, and
the other to the left leading far into a portion of it which had
been long disused. Since the inundation caused by the goblins, it
had indeed been rendered impassable by the settlement of a quantity
of the water, forming a small but very deep lake, in a part where
there was a considerable descent.

They had just risen and were turning to the right, when a gleam
caught their eyes, and made them look along the whole gallery. Far
up they saw a pale green light, whence issuing they could not tell,
about halfway between floor and roof of the passage. They saw
nothing but the light, which was like a large star, with a point of
darker colour yet brighter radiance in the heart of it, whence the
rest of the light shot out in rays that faded toward the ends until
they vanished. It shed hardly any light around it, although in
itself it was so bright as to sting the eyes that beheld it.
Wonderful stories had from ages gone been current in the mines
about certain magic gems which gave out light of themselves, and
this light looked just like what might be supposed to shoot from
the heart of such a gem.

They went up the old gallery to find out what it could be. To
their surprise they found, however, that, after going some
distance, they were no nearer to it, so far as they could judge,
than when they started. It did not seem to move, and yet they
moving did not approach it. Still they persevered, for it was far