When to this awful sound there were added the intermittent explosions, the horrid crackling of millions of rock-masses meeting in the air, and the bubbling up of molten lava—­verily it did not require the imagination of a Dante to see in all this the very vomiting of Gehenna!

So amazed and well-nigh stunned was Nigel at the sights and sounds that he neither heard nor saw the arrival of the excursionists, until the equally awe-stricken Moses touched him on the elbow and drew his attention to several men who suddenly appeared on the crater-brim not fifty yards off, but who, like themselves, were too much absorbed with the volcano itself to observe the other visitors.  Probably they took them for some of their own party who had reached the summit before them.

Nigel was yet looking at these visitors in some surprise, when an elderly nautical man suddenly stood not twenty yards off gazing in open-mouthed amazement, past our hero’s very nose, at the volcanic fires.

“Hallo, Father!” shouted the one.

“Zounds!  Nigel!” exclaimed the other.

Both men glared and were speechless for several seconds.  Then Nigel rushed at the captain, and the captain met him half-way, and they shook hands with such hearty goodwill as to arrest in his operations for a few moments a photographer who was hastily setting up his camera!

Yes, science has done much to reveal the marvellous and arouse exalted thoughts in the human mind, but it has also done something to crush enthusiasts and shock the romantic.  Veracity constrains us to state that there he was, with his tripod, and his eager haste, and his hideous black cloth, preparing to “take” Perboewatan on a “dry plate”!  And he “took” it too!  And you may see it, if you will, as a marvellous frontispiece to the volume by the “Krakatoa Committee”—­a work which is apparently as exhaustive of the subject of Krakatoa as was the great explosion itself of those internal fires which will probably keep that volcano quiet for the next two hundred years.

But this was not the Great Eruption of Krakatoa—­only a rehearsal, as it were.

“What brought you here, my son?” asked the captain, on recovering speech.

“My legs, father.”

“Don’t be insolent, boy.”

“It’s not insolence, father.  It’s only poetical licence, meant to assure you that I did not come by ’bus or rail though you did by steamer!  But let me introduce you to my friend, Mr.——­”

He stopped short on looking round, for Van der Kemp was not there.

“He goed away wheneber he saw de peepil comin’ up de hill,” said Moses, who had watched the meeting of father and son with huge delight.  “But you kin interdooce me instead,” he added, with a crater-like smile.

“True, true,” exclaimed Nigel, laughing.  “This is Moses, father, my host’s servant, and my very good friend, and a remarkably free-and-easy friend, as you see.  He will guide us back to the cave, since Van der Kemp seems to have left us.”