"There has not been a sound," he whispered, "and nothing has occurred so far to arouse our suspicions. Both John and I have endeavoured to discover the position of the prahu, but the night is too dark. When we ran into the bay she was some distance higher up the coast, and for all we know may have anchored there. Keep your eyes and ears open, and do not hesitate to give the signal if there should be cause."

Promising to follow the advice given to him, Tyler leapt from his bunk and crept up on deck, to find that the schooner lay without a movement on the water, and that the sky above was lit up by myriads of bright stars. All round, however, was impenetrable gloom, and though he went to either side of the schooner, and with arms leaning upon the bulwarks peered into the darkness, nothing caught his eye, while there was no sound save the gentle lisp of the water against the vessel's side to attract his attention.

"What was that?" He stood still beside the companion which led from the cabin and listened eagerly, while his heart beat heavily and thumped almost audibly against his ribs. "Ah, there it was again; a splash somewhere near at hand!"

Darting to the side he slipped his boots from his feet, and then ran silently along the deck till close to the bows, when he suddenly caught sight of a figure standing before him. In an instant his hand grasped the butt of one of his revolvers, and, drawing the weapon, he advanced upon the man.

"Who is that?" he demanded in low but commanding tones. "Answer at once."

At the words the figure before him started suddenly and turned swiftly about. Then a second voice broke the silence.

"Who but Hanns Schlott, meinheer?" was the answer, in tones which the speaker endeavoured to render suave. "Who but the interpreter, who, finding sleep impossible on this fine night, has come upon deck to enjoy silence and solitude."

"Then what caused the splash?"

"The splash, meinheer! Ah! I recollect there was a rope coiled here beside the halyard, and as I leaned against the rail my arm touched it, and it fell into the water. See, here it is; I will pull it on board."

He grasped a thick cable close at hand, and pulled upon it till the end came over the bulwark and fell upon the deck. Then, yawning loudly, he bade Tyler a curt "good-night!" and disappeared below, leaving the latter standing upon the deck full of suspicion and with vague fears of some unknown but impending trouble. Indeed, had he but followed the crafty Dutchman to his cabin, and watched his behaviour there, the signal which had been agreed upon would have at once awakened the silence of the night, and brought his two comrades rushing up to support him. But his duty was to watch above, and therefore, slipping his boots on to his feet, once more he slowly trudged the length of the vessel, halting every now and again to listen intently for sounds, and stare into the darkness. Meanwhile Hanns Schlott had disappeared within his cabin.