“Dyaks!” he growled fiercely.  “A ship’s officer, an Englishman probably, murdered by head-hunting Dyak pirates!”

If they came once they would come again.

Five hundred yards away Iris Deane was sleeping.  He ought not to have left her alone.  And then, with the devilish ingenuity of coincidence, a revolver shot awoke the echoes, and sent all manner of wildfowl hurtling through the trees with clamorous outcry.

Panting and wild-eyed, Jenks was at the girl’s side in an inconceivably short space of time.  She was not beneath the shelter of the grove, but on the sands, gazing, pallid in cheek and lip, at the group of rocks on the edge of the lagoon.

“What is the matter?” he gasped.

“Oh, I don’t know,” she wailed brokenly.  “I had a dream, such a horrible dream.  You were struggling with some awful thing down there.”  She pointed to the rocks.

“I was not near the place,” he said laboriously.  It cost him an effort to breathe.  His broad chest expanded inches with each respiration.

“Yes, yes, I understand.  But I awoke and ran to save you.  When I got here I saw something, a thing with waving arms, and fired.  It vanished, and then you came.”

The sailor walked slowly to the rocks.  A fresh chip out of the stone showed where the bullet struck.  One huge boulder was wet, as if water had been splashed over it.  He halted and looked intently into the water.  Not a fish was to be seen, but small spirals of sand were eddying up from the bottom, where it shelved steeply from the shore.

Iris followed him.  “See,” she cried excitedly.  “I was not mistaken.  There was something here.”

A creepy sensation ran up the man’s spine and passed behind his ears.  At this spot the drowned Lascars were lying.  Like an inspiration came the knowledge that the cuttlefish, the dreaded octopus, abounds in the China Sea.

His face was livid when he turned to Iris.  “You are over-wrought by fatigue, Miss Deane,” he said.  “What you saw was probably a seal;” he knew the ludicrous substitution would not be questioned.  “Please go and lie down again.”

“I cannot,” she protested.  “I am too frightened.”

“Frightened!  By a dream!  In broad daylight!”

“But why are you so pale?  What has alarmed you?”

“Can you ask?  Did you not give the agreed signal?”

“Yes, but—­”

Her inquiring glance fell.  He was breathless from agitation rather than running.  He was perturbed on her account.  For an instant she had looked into his soul.

“I will go back,” she said quietly, “though I would rather accompany you.  What are you doing?”

“Seeking a place to lay our heads,” he answered, with gruff carelessness.  “You really must rest, Miss Deane.  Otherwise you will be broken up by fatigue and become ill.”

So Iris again sought her couch of sand, and the sailor returned to the skeleton.  They separated unwillingly, each thinking only of the other’s safety and comfort.  The girl knew she was not wanted because the man wished to spare her some unpleasant experience.  She obeyed him with a sigh, and sat down, not to sleep, but to muse, as girls will, round-eyed, wistful, with the angelic fantasy of youth and innocence.