"Nonsense!" she retorted. "I knew that long before you admitted it to yourself."

"Date, please?"

"Well, to begin at the very beginning, you thought I was nice on board the Sirdar. Now, didn't you?"

And they were safely embarked on a conversation of no interest to any other person in the wide world, but which provided them with the most delightful topic imaginable.

Thus the time sped until the rising moon silhouetted the cliff on the white carpet of coral-strewn sand. The black shadow-line traveled slowly closer to the base of the cliff, and Jenks, guided also by the stars, told Iris that midnight was at hand.

They knelt on the parapet of the ledge, alert to catch any unusual sound, and watching for any indication of human movement. But Rainbow Island was now still as the grave. The wounded Dyaks had seemingly been removed from hut and beach; the dead lay where they had fallen. The sea sang a lullaby to the reef, and the fresh breeze whispered among the palm fronds—that was all.

"Perhaps they have gone!" murmured Iris.

The sailor put his arm round her neck and gently pressed her lips together. Anything would serve as an excuse for that sort of thing, but he really did want absolute silence at that moment. If the Mussulman kept his compact, the hour was at hand.

An unlooked-for intruder disturbed the quietude of the scene. Their old acquaintance, the singing beetle, chortled his loud way across the park. Iris was dying—as women say—to remind Jenks of their first meeting with that blatant insect, but further talk was impossible; there was too much at stake—water they must have.

Then the light hiss of a snake rose to them from the depths. That is a sound never forgotten when once heard. It is like unto no other. Indeed, the term "hiss" is a misnomer for the quick sibilant expulsion of the breath by an alarmed or angered serpent.