"But she is there, for all that," exclaimed Glenarvan, "waiting for us, and running alongside."

"We shall see her to-morrow," replied McNabbs.

Tom Austin hailed the invisible yacht, but there was no response. The wind was very high and the sea rough. The clouds were scudding along from the west, and the spray of the waves dashed up even to the sand-hills. It was little wonder, then, if the man on the look-out could neither hear nor make himself heard, supposing the DUNCAN were there. There was no shelter on the coast for her, neither bay nor cove, nor port; not so much as a creek. The shore was composed of sand-banks which ran out into the sea, and were more dangerous to approach than rocky shoals. The sand-banks irritate the waves, and make the sea so particularly rough, that in heavy weather vessels that run aground there are invariably dashed to pieces.

Though, then, the DUNCAN would keep far away from such a coast, John Mangles is a prudent captain to get near. Tom Austin, however, was of the opinion that she would be able to keep five miles out.