Fantastic and Sinister are the Lowlands into which Philip Grant Descends

HAVE you ever stood on the seashore, with the breakers rolling at your feet, and imagined what the scene would be like if the ocean water were gone? I have had a vision of that many times. Standing on the Atlantic Coast, gazing out toward Spain, I can envisage myself, not down at the sea-level, but upon the brink of a height. Spain and the coast of Europe, off there upon another height. Fantastic and sinister are the Lowlands into which Philip Grant descends on his dangerous assignment.