Doctor Hermann, cool and collected even in such awful moments, walked slowly back to the laboratory to consult his instruments. Graham and Temple followed, too excited to speak. "Well, Doctor," said Temple at last, after he had patiently waited his investigation, "what are your conclusions?" With marvellous coolness, as though answering the merest commonplace remark, Doctor Hermann replied: "It is as I said before; the _Sirius_ is falling with ever-increasing speed into the sun! We are lost! "Our doom, even if our speed goes on increasing, cannot overtake us for several years," continued the Doctor, "but I doubt if our supplies could hold out for such a period." "Doctor," broke in Temple excitedly, "that is poor comfort; you ask us too much endurance. I, for one, will not, cannot, go on in such misery, only to be overwhelmed at last. Two alternatives are left to us. We can either go on in a lingering agony of suspense, and meet our doom by starvation, or by fire; or, we can end our woes swiftly and effectually with these"--and as he spoke he pointed to the four nickel-plated revolvers hanging loaded against the wall. "We can but die like men!" "I must confess, if all hope is really gone, that I incline to Mr. Temple's view of the situation, and would prefer a sharp and practically painless death to, it may be, years of horrible suspense, crowned with the ten thousand times more awful fate of being hurled into yonder furnace at last," said Graham. "Temple, and you, too, Graham," answered the Doctor, "you surprise me by such a shallow mode of reasoning. Listen to me. Both of you are free agents to act as you may think fit; but before you rashly take your lives, at least wait a little longer. We are in the midst of strange surroundings, and still stranger possibilities. There is nothing to warrant you in taking such extreme measures." "My sentiments, Doctor, must, I suppose, be attributed to my weakness," answered Temple. "You may taunt me as you will," said Graham, "but I believe there are rare occasions in life when self-murder can be no crime--nay, is even justified." "Then all I can say is that your ethics are not mine, that your theology is not half the comfort or support to you in your extremity that my philosophy is to me in mine," remarked the Doctor. "Once more," said the Doctor, "let me bid you wait. Let the motors be started again, Graham, at full pressure. Some unforeseen occurrence may yet work our salvation." As time went on, Graham and Temple became more resigned to their fate; and, in answer to the Doctor's urgent entreaties, gave him their promise to think no more of suicide, at least until matters became more desperate. The Doctor never abandoned hope. Calmly he bore up under all difficulties, plodding along with his instruments and his calculations; writing up his journals, and making voluminous notes, though every word he penned was probably never destined to be read by any other mortal but himself.