"No! no! A man must be made of sterner stuff. We have a right to defend ourselves. If need be I will exercise that right. Still it is horrid, oh, so horrid!"

She could not see the sailor's grim smile. It would materially affect his rest, for the better, were he able to slay every Dyak on the island with a single shot. Yet her gentle protest pleased him. She could not at the same time be callous to human suffering and be Iris. But he declined the discussion of such sentiments.

"You were going to say something when a brief disturbance took place?"

he inquired.

"Yes. I was surprised to find how hot the ledge has become."

"You notice it more because you are obliged to remain here."

After a pause--

"I think I understand now why you were so upset by the loss of our water supply. Before the day ends we will be in great straits, enduring agonies from thirst!"

"Let us not meet the devil half-way," he rejoined. He preferred the unfair retort to a confession which could only foster dismay.

"But, please, I am thirsty now."

He moved uneasily. He was only too conscious of the impish weakness, common to all mankind, which creates a desire out of sheer inability to satisfy it. Already his own throat was parched. The excitement of the early struggle was in itself enough to engender an acute thirst. He thought it best to meet their absolute needs as far as possible.

"Bring the tin cup," he said. "Let us take half our store and use the remainder when we eat. Try to avoid breathing through your mouth. The hot air quickly affects the palate and causes an artificial dryness. We cannot yet be in real need of water. It is largely imagination."

Iris needed no second bidding. She carefully measured out half a pint of the unsavory fluid--the dregs of the casks and the scourings of the ledge.

"I will drink first," she cried.

"No, no," he interrupted impatiently. "Give it to me."

She pretended to be surprised.

"As a mere matter of politeness----"

"I am sorry, but I must insist."

She gave him the cup over his shoulder. He placed it to his lips and gulped steadily.

"There," he said, gruffly. "I was in a hurry. The Dyaks may make another rush at any moment."

Iris looked into the vessel.

"You have taken none at all," she said.

"Nonsense!"

"Mr. Jenks, be reasonable! You need it more than I. I d-don't want to--live w-without--you."

His hands shook somewhat. It was well there was no call for accurate shooting just then.

"I a.s.sure you I took all I required," he declared with unnecessary vehemence.

"At least drink your share, to please me," she murmured.

"You wished to humbug me," he grumbled. "If you will take the first half I will take the second."

And they settled it that way. The few mouthfuls of tepid water gave them new life. One sense can deceive the others. A man developing all the symptoms of hydrophobia has been cured by the a.s.surance that the dog which bit him was not mad. So these two, not yet aflame with drought, banished the arid phantom for a little while.

Nevertheless, by high noon they were suffering again. The time pa.s.sed very slowly. The sun rose to the zenith and filled earth and air with his ardor. It seemed to be a miracle--now appreciated for the first time in their lives--that the sea did not dry up, and the leaves wither on the trees. The silence, the deathly inactivity of all things, became intolerable. The girl bravely tried to confine her thoughts to the task of the hour. She displayed alert watchfulness, an instant readiness to warn her companion of the slightest movement among the trees or by the rocks to the north-west, this being the arc of their periphery a.s.signed to her.

Looking at a sunlit s.p.a.ce from cover, and looking at the same place when sweltering in the direct rays of a tropical sun, are kindred operations strangely diverse in achievement. Iris could not reconcile the physical sensitiveness of the hour with the careless hardihood of the preceding days. Her eyes ached somewhat, for she had tilted her sou'wester to the back of her head in the effort to cool her throbbing temples. She put up her right hand to shade the too vivid reflection of the glistening sea, and was astounded to find that in a few minutes the back of her hand was scorched. A faint sound of distant shouting disturbed her painful reverie.

"How is it," she asked, "that we feel the heat so much today? I have hardly noticed it before."

"For two good reasons--forced idleness and radiation from this confounded rock. Moreover, this is the hottest day we have experienced on the island. There is not a breath of air, and the hot weather has just commenced."

"Don't you think," she said, huskily, "that our position here is quite hopeless?"

They were talking to each other sideways. The sailor never turned his gaze from the southern end of the valley.

"It is no more hopeless now than last night or this morning," he replied.

"But suppose we are kept here for several days?"

"That was always an unpleasant probability."

"We had water then. Even with an ample supply it would be difficult to hold out. As things are, such a course becomes simply impossible."

Her despondency pierced his soul. A slow agony was consuming her.

"It is hard, I admit," he said. "Nevertheless you must bear up until night falls. Then we will either obtain water or leave this place."

"Surely we can do neither."

"We may be compelled to do both."

"But how?"

In this, his hour of extremest need, the man was vouchsafed a shred of luck. To answer her satisfactorily would have baffled a Talleyrand. But before he could frame a feeble pretext for his too sanguine prediction, a sampan appeared, eight hundred yards from Turtle Beach, and strenuously paddled by three men. The vague hallooing they had heard was explained.

The Dyaks, though to the manner born, were weary of sun-scorched rocks and salt water. The boat was coming in response to their signals, and the sight inspired Jenks with fresh hope. Like a lightning flash came the reflection that if he could keep them away from the well and destroy the sampan now hastening to their a.s.sistance, perhaps conveying the bulk of their stores, they would soon tire of slaking their thirst, on the few pitcher-plants growing on the north sh.o.r.e.

"Come quick," he shouted, adjusting the backsight of a rifle. "Lie down and aim at the front of that boat, a little short if anything. It doesn't matter if the bullets strike the sea first."

He placed the weapon in readiness for her and commenced operations himself before Iris could reach his side. Soon both rifles were pitching twenty shots a minute at the sampan. The result of their long-range practice was not long in doubt. The Dyaks danced from seat to seat in a state of wild excitement. One man was hurled overboard.

Then the craft lurched seaward in the strong current, and Jenks told Iris to leave the rest to him.

Before he could empty a second magazine a fortunate bullet ripped a plank out and the sampan filled and went down, amidst a shrill yell of execration from the back of the cliff. The two Dyaks yet living endeavored to swim ash.o.r.e, half a mile through shark-invested reefs.

The sailor did not even trouble about them. After a few frantic struggles each doomed wretch flung up his arms and vanished. In the clear atmosphere the on-lookers could see black fins cutting the pellucid sea.