“You have been very good to me,” he said. “I appreciate it deeply. But I am going with you. We will share the dangers together, and together we will also share the glory of achievement. I believe we are going to succeed.”
And so, with these two declarations was sealed the pact of partnership which was to carry them together on the perilous journey.
When their final intention of attempting to reach Mars was announced, the journalistic world fairly seethed with excitement. Every magazine issue contained portraits of Robert and Professor Palmer, accompanied by cuts of the Sphere and the professor’s latest maps and photographs of the red planet. Never had any human undertaking even mildly approached theirs in magnitude. They were hailed as the heroes of the hour.
It was agreed that the secrets of the Sphere were to be set down and placed in a safety deposit box with a certain great trust company, to be opened and read only in case Robert and the professor failed to return after two years’ time. Thus, the world could not lose the secret of this remarkable invention.
Professor Margard, at this point, proved that his opposition to Professor Palmer’s theories was entirely impersonal. In published interviews, he highly commended his worthy contemporary’s courage, as well as that of his companion; but he deplored the dangerous project in the face of what he considered conclusive evidence against the possible existence of inhabitants on Mars. “Misdirected courage; misplaced martrydom,” he termed their intentions.
“Misdirected fiddlesticks,” snorted Professor Palmer when he read this. “We’ll show these people a thing or two.”
Two weeks were devoted to final preparations for the remarkable adventure. A powerful, adjustable searchlight had now been installed within a socket in the bottom of the Sphere to facilitate night travel and landings in the future. Petrol tanks were filled to capacity, and a supply of water taken on, some of which would be used in the cooling coils of the engines. A liberal quantity of life-giving oxygen was forced into the high-pressure tanks. Without this to constantly freshen the air within the Sphere, they could not live, as, after passing beyond the Earth’s envelope of atmosphere into the void of space, they would have no means of replenishing their air supply. A small supply of nitrogen was also added as a precaution against the total loss of the little ball of atmosphere guarded by the walls of the Sphere.
While oxygen had to be replenished as their respiration consumed it, the supply of nitrogen would remain virtually the same except for a slight seepage through the sealed walls when the protecting pressure of the Earth’s atmosphere was removed. The atmospheric pressure within the Sphere would be about fifteen pounds to the square inch, with the absolute vacuum of space hungrily enveloping the exterior. An apparatus for absorbing the carbonic acid gas thrown off by their lungs was also a part of the Sphere’s equipment.
Robert tinkered about the Sphere, constantly inspecting every part with painstaking care. The resilient rubber window strips, insuring against the loss of the precious atmosphere, were looked to with especial care. The heavy glass panes were examined minutely for possible signs of fracture, or flaws. Such a defect would prove disastrous if it should give way under the pressure within when they were in space. They would then be placed in a vacuum in which no living body can exist. So sudden would such a disaster be that they would have no opportunity, nor means, of saving themselves. All windows, however, were equipped with double panes for safety as well as warmth. They were also fitted outside with guards of heavy wire net.
The lubricating reservoirs of the gyrostats were filled carefully; the bearings were cleaned perfectly. Engines were tuned, and, in short, every bit of mechanism was tested and regulated to a point of perfection.