Excerpt from Book: THE tribe of the sturgeon was speeding southward over the rock-strewn floors of the inland sea. In the van of the swimming host its leader bore a wondrous stone. From it multicolored beams flashed out through the dim waters and into unsounded depths. Shapes, still and ghostly, with waving fins and solemn orbs, stared at the passing glow and vanished. Phantom-like forms faded quickly into dark recesses, and frightened schools of small fish fled away over pale sandy expanses. Clouds of fluttering gulls and terns followed the strange light that gleamed below the waves. Migrating birds, high in the night skies, wheeled with plaintive calls, for this new radiance was not of the world of wings and fins.