It was a bright summer morning, remarkable even in the monotonous excellence of the season, with a slight touch of warmth which the invincible Northwest Trades had not yet chilled.  There was still a faint haze off the coast, as if last night’s fog had been caught in the quick sunshine, and the shining sands were hot, but without the usual dazzling glare.  A faint perfume from a quaint lilac-colored beach-flower, whose clustering heads dotted the sand like bits of blown spume, took the place of that smell of the sea which the odorless Pacific lacked.  A few rocks, half a mile away, lifted themselves above the ebb tide at varying heights as they lay on the trough of the swell, were crested with foam by a striking surge, or cleanly erased in the full sweep of the sea.  Beside, and partly upon one of the higher rocks, a singular object was moving.

Pomfrey was interested but not startled.  He had once or twice seen seals disporting on these rocks, and on one occasion a sea-lion,—­an estray from the familiar rocks on the other side of the Golden Gate.  But he ceased work in his garden patch, and coming to his house, exchanged his hoe for a telescope.  When he got the mystery in focus he suddenly stopped and rubbed the object-glass with his handkerchief.  But even when he applied the glass to his eye for a second time, he could scarcely believe his eyesight.  For the object seemed to be a woman, the lower part of her figure submerged in the sea, her long hair depending over her shoulders and waist.  There was nothing in her attitude to suggest terror or that she was the victim of some accident.  She moved slowly and complacently with the sea, and even—­a more staggering suggestion—­appeared to be combing out the strands of her long hair with her fingers.  With her body half concealed she might have been a mermaid!

He swept the foreshore and horizon with his glass; there was neither boat nor ship—­nor anything that moved, except the long swell of the Pacific.  She could have come only from the sea; for to reach the rocks by land she would have had to pass before the lighthouse, while the narrow strip of shore which curved northward beyond his range of view he knew was inhabited only by Indians.  But the woman was unhesitatingly and appallingly white, and her hair light even to a golden gleam in the sunshine.

Pomfrey was a gentleman, and as such was amazed, dismayed, and cruelly embarrassed.  If she was a simple bather from some vicinity hitherto unknown and unsuspected by him, it was clearly his business to shut up his glass and go back to his garden patch—­although the propinquity of himself and the lighthouse must have been as plainly visible to her as she was to him.  On the other hand, if she was the survivor of some wreck and in distress—­or, as he even fancied from her reckless manner, bereft of her senses, his duty to rescue her was equally clear.  In his dilemma he determined upon a compromise and ran to his boat.  He would pull out to sea, pass between the rocks and the curving sand-spit, and examine the sands and sea more closely for signs of wreckage, or some overlooked waiting boat near the shore.  He would be within hail if she needed him, or she could escape to her boat if she had one.