All my muscles, all my will, were strained upon this purpose.
Drawing nearer, I observed that a wave-like motion kept passing over this brighter space, as it had passed over the mirror.

The glimmer would be obscured for a moment, and then re-appear.

At length a gentle acclivity of the moor hid it for a while.

My legs positively raced up this slope, and upon the summit I hardly dared to look for a moment, knowing that if the light were an illusion all my hope must die with it.
But it was no illusion.

There was the light, and there, before my feet, lay a sable sheet of water, over the surface of which the light was playing.