But, though every precaution was taken, the adventurers were not to get away from the earth safely. Almost at the last minute, a crazy machinist, named Fred Axtell, who was refused work on the projectile, tried to blow it up with a bomb. He partly succeeded, but the damage was repaired, and the start made.
Inside the projectile our friends shut themselves up, and the powerful motors were started. Off it shot, at the rate of one hundred miles a second, but the travellers were as comfortable as in a Pullman car.
They had plenty to eat and drink, they manufactured their own air and water, and they slept when they so desired.
But Axtell, the crazy machinist, had hidden himself aboard, and, in mid-air, he tried to wreck the projectile. He was caught, and locked up in a spare room, but, when Mars was reached, he escaped.
The book tells how our friends were welcomed by the Martians, how they learned the language, saw many strange sights, and finally got on the track of the Cardite, or red substance, which the German professor, Mr.
Roumann, had come so far to seek. This Cardite was capable of great force, and, properly controlled, could move great weights and operate powerful machinery.
Our friends wanted to take some back to earth with them, but when they attempted to store it in their projectile, they met with objections, for the Martians did not want them to take any. They had considerable trouble, and the crazy machinist led an attack of the soldiers of the red planet against our friends, the adventurers in the projectile.
Among the other curiosities brought away by our friends, was a newspaper printed in Mars, for the inhabitants of that place where much further advanced along certain lines than we are on this earth, but in the matter of newspapers they had little to boast of, save that the sheets were printed by wireless electricity, no presses being needed.
As told at the opening of this story, Jack had noticed on one of the sheets they brought back, an account of how some of the Martians made a trip to the moon, and discovered a field of Reonaris. This trip was made shortly before our friends made their hasty departure, and it was undertaken by some Martian adventurers on another part of the red planet than where the projectile landed, and so Professor Henderson and his friends did not hear of it at the time.
"Well, then, suppose we make the attempt to go to the moon," said Professor Roumann, after a long discussion in the laboratory. "It will not take long to get ready."
"I"d like to go," said Jack. "How about you, Professor Henderson? Oh, by the way, Washington said you wanted to see Mark and me, but I was so interested in this news item, that I forgot to ask what it as about."
"I merely wanted to inquire when you and Mark thought of resuming your studies at college," said the aged man, "but, since this matter has come up, it will be just as well if you do not arrange to resume your lessons right away."
"We can study while making the trip to the moon," suggested Mark.
"Not much," declared Jack, with a laugh. "There"ll be too much to see."
"Well, we"ll discuss that later," went on Mr. Henderson. "Practically speaking, I think the voyage can be made, and, the more I think of it, the better I like the idea. We will look over the projectile in the morning, and see what needs to be done to it to get it ready for another trip through s.p.a.ce."
"Not much will have to be done, I fancy," remarked the German scientist. "But I want to make a few improvements in the Cardite motor, which I will use in place of the Etherium one, that took us to Mars."
A little later there came a knock on the rear door of the rambling old house where the professor lived and did much of his experimental work.
"I"ll go," volunteered Jack, and when he opened the portal there stood on the threshold a small boy, d.i.c.k Johnson, one of the village lads.
"What is it you want, d.i.c.k?" asked Mark.
"Here"s a note for you," went on the boy, pa.s.sing over a slip of paper.
"I met a man down the road, and he gave me a quarter to bring it here.
He said it was very important, and he"s waiting for you down by the white bridge over the creek."
"Waiting for who?" asked Jack.
"For Mark, I guess; but I don"t know. Anyhow, the note"s for him."
"Hum! This is rather strange," mused Mark.
"What is it?" asked Jack.
"Why, this note. It says: "It is important that I see you. I will wait for you at the white bridge." That"s all there is to it."
"No name signed?" asked Jack.
"Not a name. But I"ll just take a run down and see what it is. I"ll not be long. Much obliged, d.i.c.k."
The boy who had brought the note turned to leave the house, and Mark prepared to follow. Jack said:
"Let me see that note."
He scanned it closely, and, as Mark was getting on his hat and coat, for the night was chilly, his chum went on:
"Mark, if I didn"t know, that we had left Axtell, the crazy machinist, up on Mars, I"d say that this was his writing. But, of course, it"s impossible."
"Of course--impossible," agreed Mark.
"But, there"s one thing, though," continued Jack.
"What"s that?" asked Mark.
"I don"t like the idea of you going off alone in the dark, to meet a man who doesn"t sign his name to the note he wrote. So, if you have no objections, I"ll go with you. No use taking any chances."
"I don"t believe I run any risk," said Mark, "but I"ll be glad of your company. Come along. Maybe it"s only a joke." And the two lads started off together in the darkness toward the white bridge.
CHAPTER III
PREPARING FOR A VOYAGE
"Seems like rather an odd thing; doesn"t it?" remarked Jack, as he and his chum walked along.
"What?"
"This note."
"Oh, yes. But what made you think the writing looked like that of the crazy machinist who tried to wreck the projectile?"
"Because I once saw some of the crazy letters he sent us, and he wrote just like the man who gave d.i.c.k this note. But come on, let"s hustle, and see what"s up."
In a few minutes they came in sight of the white bridge, which was about a quarter of a mile down the road from the professor"s house. The two boys kept well together, and they were watching for a first sight of the man in waiting.
"See anything?" asked Jack.
"No; do you?"
"Not a thing. Wait until we get closer. He may be in the shadow. It"s dark now."
Almost as Jack spoke, the moon, which had been hidden behind a bank of clouds, peeped out, making the scene comparatively bright. The boys peered once more toward the bridge, and, as they did so, they saw a figure step from the shadows, stand revealed for an instant in the middle of the structure, and then, seemingly after a swift glance toward the approaching chums, the person darted off in the darkness.