Now it beat up against that barrier as a bird against the bars of its cage.

It whirled with shimmering plumes, with swirls of lacy light, with spirals of living vapour.

It held within it odd, unfamiliar gleams as of shifting mother-of-pearl.

Coruscations and glittering atoms drifted through it as though it drew them from the rays that bathed it.
Nearer and nearer it came, borne on the sparkling waves, and ever thinner shrank the protecting wall of shadow between it and us.

Within the mistiness was a core, a nucleus of intenser light--veined, opaline, effulgent, intensely alive.