Sure enough, there lay, apparently, another sunken rock.

"The rock is moving!" shouted Franz; and a great black body emerged from the sea, while from the upper extremity rushed a column of water, which, with a mighty noise, rose upward, and then fell like rain all around. The mystery was explained; for, as the great beast emerged yet further from the water, I recognized, from its enormous size and great length of head, the cachalot whale.

The monster was apparently enraged at the way we had scratched his back; for, retreating to a short distance, he evidently meditated a rush upon us.

Fearful stories occurred to me of the savage temper of this whale, how he has been known to destroy boat after boat, and even ships, and with a feeling of desperation I sprang to one of the guns. Jack leaped to the other, and almost simultaneously we fired. Both shots apparently took effect; for the whale, after lashing the water violently for a few seconds, plunged beneath its surface, and disappeared. We kept a sharp lookout for him, for I was unwilling to lose such a valuable prize, and, reloading, stood toward the shore, in which direction he was apparently making. Presently we again sighted him in shallow water, lashing fearfully with his tail, and dyeing the waves around him with blood. Approaching the infuriated animal as nearly as I dared, we again fired.

The struggles of the whale seemed for a few moments to become even yet more frantic, and then, with a quiver from head to tail, he lay motionless—dead!

The boys were about to raise the cry of victory, but checked the shout upon their very lips; for darting behind a rock they espied a canoe paddled by a tall and muscular savage, who now stood up in his skiff and appeared to be examining us attentively. Seeing that we were standing toward him, the swarthy native seized his paddle and again darted behind a rock. An awful thought now took possession of me. There must be a tribe of blacks lurking on these shores, and Fritz must have fallen into their hands. We, however, I determined, should not be easily taken; and our guns were loaded and run out.

Presently a dusky face appeared, peeping at us from a lofty rock; it vanished, and we saw another peeping at us from lower down. Then, again, the skiff put out as though to make a further reconnoiter. All, even Jack, looked anxious, and glanced at me for orders.

"Hoist a white flag," said I, "and hand me the speaking-trumpet."

I seized the instrument and uttered such peaceable words in the Malay language as I could recall; neither the flag nor my words seemed to produce any effect, and the savage was about to return to the shore.

Jack hereupon lost patience, and in his turn took up the trumpet.