Gerald Wilton and Jack Lawford were two youths, orphans both, who, after having been brought up and educated in England, found themselves, through a curious series of chances, passing their time upon this island under the guardianship of a former friend of Gerald's father, named Armeath. The latter was a scientist who had chosen to make this out-of-the-way spot—absolutely uninhabited save for himself and his establishment—his home for a year or two, in order the better to pursue certain abstruse studies to which he was ardently devoted.
They were stalwart, well-grown, clean-limbed British youths, these two, with good-looking faces and well-knit frames, fond of hunting, shooting, fishing, and all outdoor sports. At first, therefore, it is needless to say, they had enjoyed the change to this far-off island home, and entered with zest into its free, open life. If limited as to space, there were larger islands near, amongst which they could take an occasional cruise, and where they could go ashore for hunting expeditions.
But after nearly a year, even this pleasant life had begun to grow a little monotonous. The two high-spirited youngsters were getting somewhat tired of it, and beginning to long—almost unconsciously—for other and more exciting adventures.
Of the two, however, Gerald perhaps was more troubled by these vague, restless feelings than his chum. As his friend had said, Gerald was given at times to fits of dreaming. In appearance he was fairer and a little taller than his companion, with gray eyes which often had in them an abstracted, far-away look. Jack, on the other hand, was almost swarthy of skin, with dark hair, firm lips, and keen, alert eyes, which indicated an active, determined character, and a practical, matter-of-fact temperament.
That, in effect, constituted the essential difference between these two firm friends. Gerald was fond of indulging in speculations concerning all kinds of scientific research. The mysteries of the unknown, and the as yet 'undiscovered;' the limitless possibilities lying in the worlds surrounding our globe—speculations concerning such themes as these had for him an irresistible fascination. Jack, on the other hand, kept his thoughts and interest fixed upon the practical side of everything about him. He was a skilful mechanic and a trained mathematician, and had developed clever engineering abilities; he might possibly some day become an inventor. But speculative, dreamy fancies had little attraction for him.
'Jack,' said Gerald impressively, 'I can't come in just now—I really cannot! I can't exactly say why, but to-night I seem to be unusually restless. I could not sit down indoors, nor could I rest if I went to bed. I don't know what it is; but I have a feeling'——
'It's the electricity in the air. I suppose there must be more lying about loose to-night than suits your constitution,' remarked Jack prosaically. 'I said a minute or two since that you were as dreamy at times as any girl. I begin now to think you are developing "nerves" as well. However, do as you please! Stop here and enjoy yourself with your "nervy," dreamy fancies if you choose. For my part, I 'm going in to supper, and'——
'What are you lads talking about?'
This question, which came from some one behind them, caused the two friends to start suddenly, and then glance at one another with wondering looks.
It was not that they had not recognised the voice. They knew it at once to be that of Mr Armeath, their guardian; the wonder was that he should have come out to them. Usually he spent the whole night shut up in his own rooms, immersed in his studies, or gazing through his telescope at the heavens above; for, amongst other things, he was an enthusiastic astronomer.