Mr. Gibbs's reports, and those of his assistants, were well worked out, and of the greatest value to the scientific world, and every one who had made that memorable voyage on the Dipsey had stories to tell for which editors in every civilized land would have paid gold beyond all former precedent.

But Roland Clewe did not care to say anything to the world until he could say everything that he wished to say. It had been known that he had sent an expedition into Northern waters, but exactly what he intended to do had not been known, and what he had done had not been communicated even to the telegraph-operators at Cape Tariff. These had received despatches in cipher from points far away to the north, but while they transmitted them to Sardis they had no idea of their signification. When everything should be ready to satisfy the learned world, as well as the popular mind, the great discovery of the pole would be announced.

In the meantime there was a suspicion in the journalistic world that the man of inventions who lived at Sardis, New Jersey, had done something out of the common in the North. A party of people, one of them a woman, had been taken up there and left there, and they had recently been brought back. The general opinion was that Clewe had endeavored to found a settlement at some point north of Cape Tariff, probably for purposes of scientific observation, and that he had failed. The stories of these people, however, would be interesting, and several reporters made visits to Sardis. But they all saw Sammy, and not one of them considered his communications worth more than a brief paragraph.

In a week Mr. Gibbs would have finished his charts, his meteorological, his geological, and geographical reports, and a clear, succinct account of the expedition, written by Clewe himself from the statements of the party, would be ready for publication; and in the brilliantly lighted sky of discovery which now rested, one edge upon Sardis and the other upon the pole, there was but one single cloud, and this was Rovinski.

The ambitious and unscrupulous Pole had been the source of the greatest trouble and uneasiness since he had left Cape Tariff. While there he had found that he could not possibly get ashore, and so had kept quiet; but when on board the vessel which had been sent to them from St. John's, he had soon begun to talk to the crew, and there seemed to be but one way of preventing him from making known what had been done by the expedition before its promoters were ready for the disclosure, and this was to declare him a maniac, whose utterances were of no value whatever. He was put into close confinement, and it was freely reported that he had gone crazy while in the arctic regions, and that his mind had been filled with all sorts of insane notions regarding that part of the world.

It had been intended to put him in jail on a criminal charge, but this would not prevent him from talking; and so, when he arrived in New Jersey, he was sent to an insane asylum, the officers of which were not surprised to receive him, for, in their opinion, a wilder-looking maniac was not, to be found within the walls of the institution.

Early on the morning of the day before the world was to be electrified by the announcement of the discovery of the pole, a man named William Cunningham, employed in the Sardis Works, entered the large building which had been devoted to the manufacture of the automatic shell, but which had not been used of late and had been kept locked. Cunningham was the watchman, and had entered to make his usual morning rounds. He had scarcely closed the door behind him when, looking over towards the engines which still stood by the mouth of the shaft made by the automatic shell, he was amazed to see that the car which had been used by Roland Clewe in his descent was not hanging above them.

Utterly unable to understand this state of affairs, he ran to the mouth of the shaft. He found the great trap-door which had closed it thrown back, and the grating which had been made to cover the orifice after the car had descended in its place. The engines were not moving, and the chain on the windlass of one of them appeared not to have been disturbed, but on the other windlass one of the chains had been unwound. Cunningham was so astonished that he could not believe what he saw. He had been there the night before; everything had been in order, the shaft closed, and the trap-door locked. He leaned over the grating and looked down; he could see nothing but a black hole without any bottom. The man did not look long, for it made him dizzy. He turned and ran out of the house to call Mr. Bryce.

Ivan Rovinski was not perhaps a lunatic, but his unprincipled ambition had made him so disregard the principles of ordinary prudence when such principles stood in his way that it could not be said that he was at all times entirely sane. He understood thoroughly why he had been put in an asylum, and it enraged him to think that by this course his enemies had obtained a great advantage over him. No matter what he might say, it was only necessary to point to the fact that he was in a lunatic asylum, or that he had just come out of one, to make his utterances of no value.

But to remain in confinement did not suit him at all, and, after three days' residence in the institution in which he had been placed, he escaped and made his way to a piece of woods about two miles from Sardis, where, early that year, he had built himself a rude shelter, from which he might go forth at night and study, so far as he should be able, the operations in the Works of Roland Clewe. Having safely reached his retreat, he lost no time in sallying forth to spy out what was going on at Sardis.