Marese and Theodore, in disguise, examined the vaults, under the pretence of being agents for London merchants desirous of opening business in Stirmingham. There was hardly any necessity for this precaution, for it was so many years since they had openly resided in the place that few would have recognised them.
To their great surprise, these vaults, whose gloomy darkness they explored by the light of lanterns, extended in one vast cavern, under the whole of the hall. Instead of a series of cellars, there was one huge cavern. This was occasioned by the flooring not being supported upon brick arches, as would have been architecturally preferable, but upon timber posts, or pillars. The place had, in fact, been put up hastily, and the vaults were never completed. The timber pillars were placed in regular order, and it had been intended to build brick partitions; but as no one seemed to care to occupy the cellars, this had never been done. The floor was extremely damp, and the whole appearance of the place repulsive. Snails, toads, and slimy reptiles crawled about, and this under the very stage above, upon which music, song, and dance were wont to enliven the gay hearts of the audiences.
One great obstacle to the idea of blowing up the place was the height of these timber posts, which was full eighteen feet, so that the roof of the vault was high over head, and any explosives, to produce the full effect, would have to be piled up on casks or stands. Then the hall was larger than they had supposed, and it was apparent that the coming council would occupy but a portion of it, and perhaps change that portion now and then, so that it would be uncertain where to place the nitro-glycerine.
The idea, looked at from a distance and in the abstract, seemed feasible enough; but when they came to face the physical difficulties, it was found to be hard of realisation. There was the danger of getting the explosives into the place, the danger of detection, and, finally, the chance of an accident hoisting the engineer with his own petard, especially at that time of the year when nitro-glycerine was notoriously dangerous on account of the crystals which cold formed upon its surface, and the least jar or shake was sufficient to cause an explosion. Obviously, the plan was a cumbrous one, and without hesitation it was abandoned.
But the main idea, that of getting rid of the claimants at one blow, was not abandoned; it grew and grew, and occupied their minds day and night. At last the thought of transferring the Guy Fawkes expedient from the land to the ocean, which, once the deed was successfully accomplished, would tell no tale, occurred to them.
The claimants must come over on shipboard, if only they could be got into one or even two ships; and if these vessels sank upon the voyage suddenly without a warning! This was certainly much safer for the conspirators, as no trace would be left, and it was surer of success, because in the hall some of the victims might escape—at sea they could scarcely do so. They ran over in their minds the various methods of scuttling ships which have been invented from time to time.
There was the good old simple plan of boring holes in the bottom with augurs. There was the devilish coal-shell. A box painted to resemble coal, but really containing powder, was thrown among the coal, and when placed in the furnace blew up the boiler, and destroyed the ship. There was the ship-rat—a contrivance by which the very motion of the vessel caused an augur in a box to bore its way through, and so cause a leak. Some benevolent socialists, anxious for the welfare of man, had also promulgated a notion of exploding nitro-glycerine by clockwork, arranged to go so long, and set to act just as the vessel was farthest from land.
But all these seemed to Marese and Theodore clumsy, risky, and, what was worse, uncertain of operation. It was reserved for Marese to suggest the deadliest of all destructive engines, and he arrived at its conception in this way. He had, as it were, a double mind. He was liable to flashes of inspiration—such as it was—to sudden ideas which shot through him without endeavour. He had also the power of concentrating his thoughts, and bringing the regular forms of logic to his assistance. But this latter method he could only practise with the aid of pen and ink; and it was his constant habit, whenever contemplating an important step, such as a coup upon the Exchange, to write out his plans in a regular sequence, just as he wished them to take place.
This written guide he corrected and enlarged until it seemed beyond any further improvement; and then shutting his eyes to all consequences, resolutely avoiding those secret promptings which suggest that something has been left undone, he was accustomed to rush at the matter in hand, and dispose of it with bold, unhesitating strokes. This method certainly had its advantages, but it had also the disadvantage that if by any accident his notes fell into other hands, he was lost.
Nevertheless, after thinking and thinking in vain over this great problem, and failing of any very brilliant flash of intelligence, Marese at last resorted to his favourite system, and sought the solution by the aid of pen and ink. First he wrote at the top of his rough draft—