It still was in the verge of the horizon, and it was hard for her to see that she was apparently no nearer to it than when she started.
Besides this alarming fact, she was threatened by a still greater peril.

As the chief-officer had warned her, the waters abounded with sharks, of the man-eating species, who were liable to dart forward and seize her at any moment; but, in recalling her extraordinary experience, Miss Lacy says that at no time did she feel any fear of them.

She knew they were liable to discover her at any moment, but they did not, and fortunately indeed she escaped their ferocious jaws.
Her greatest suffering was from the blazing sun, whose rays shot downward upon her head with pitiless power.

When she found her brain growing dizzy, she averted the danger of sunstroke by dropping or swimming for some distance below the surface.

This always cooled or refreshed her, though she felt her face and neck blistering under the fierce rays.
In striving to recall her experience, Miss Lacy is unable to remember a large portion of the time she spent in the water.