"'I think it probable that Dr. Adams will succeed in compounding these two drugs. It also seems probable that at that time the United States no longer will be at war. I make the additional assumption that one or more of you gentlemen will desire to join me in the ring. Therefore, you will find herewith memoranda of my first journey into the ring which I have already described to you; I give also the quantities of each drug to be taken at various stages of the trip. These notes will refresh your memory and will assist you in your journey.
"'I intend to suggest to Dr. Adams to-day when I hand him this letter, that in the event of my failure to return within a week, he make some adequate provision for guarding the ring in safety. And I must caution you now, before starting to join me, if you conclude to do so, that you continue this provision, so as to make possible your safe return to your own world.
"'If our country is at war at the time you read this, your duty is plain. I have no fears regarding your course of action. But if not, I do not care to influence unduly your decision about venturing into this unknown other world. The danger into which I personally may have fallen must count for little with you, in a decision to hazard your own lives. I may point out, however, that such a journey successfully accomplished cannot fail but be the greatest contribution to science that has ever been made. Nor can I doubt but that your coming may prove of tremendous benefit to the humanity of this other equally important, though, in our eyes, infinitesimal world.
"'I therefore suggest, gentlemen, that you start your journey into the ring at 8 P. M. on the evening of November 4, 1923. You will do your best to find your way direct to the city of Arite, where, if I am alive, I will be awaiting you.'"
CHAPTER X
TESTING THE DRUGS
The Doctor laid his papers on the table and looked up into the white faces of the three men facing him. "That's all, gentlemen," he said.
For a moment no one spoke, and on the face of each was plainly written the evidence of an emotion too deep for words. The Doctor sorted out the papers in silence, glanced over them for a moment, and then reached for a large metal ash tray that stood near him on the table. Taking a match from his pocket he calmly lighted a corner of the papers and dropped them burning into the metal bowl. His friends watched him in awed silence; only the Very Young Man found words to protest.
"Say now, wait," he began, "why——"