"Suit yourself, Doctor. I have no authority to requisition your services. As you know, the T. A. C. has been handling a great deal of the transcontinental air mail with a pretty clean record on accidents. The day before yesterday, a special plane left Washington to carry two packages from there to San Francisco. One of them was a shipment of jewels valued at a quarter of a million, consigned to a San Francisco firm and the other was a sealed packet from the War Department. No one was supposed to know the contents of that packet except the Chief of Staff who delivered it to the plane personally, but rumors got out, as usual, and it was popularly supposed to contain certain essential features of the Army's war plans. This much is certain: The plane carried not only the regular T. A. C. pilot and courier, but also an army courier, and it was guarded during the trip by an army plane armed with small bombs and a machine-gun. I rode in it. My orders were simply to guard the ship until it landed at Mills Field and then to guard the courier from there to the Presidio of San Francisco until his packet was delivered personally into the hands of the Commanding General of the Ninth Corps Area. "The trip was quiet and monotonous until after we left Salt Lake City at dawn this morning. Nothing happened until we were about a hundred miles east of Reno. We had taken elevation to cross the Stillwater Mountains and were skimming low over them, my plane trailing the T. A. C. plane by about half a mile. I was not paying any particular attention to the other ship when I suddenly felt our plane leap ahead. It was a fast Douglas and the pilot gave it the gun and made it move, I can tell you. I yelled into the speaking tube and asked what was the reason. My pilot yelled back that the plane ahead was in trouble. "As soon as it was called to my attention I could see myself that it wasn't acting normally. It was losing elevation and was pursuing a very erratic course. Before we could reach it it lost flying speed and fell into a spinning nose dive and headed for the ground. I watched, expecting every minute to see the crew make parachute jumps, but they didn't and the plane hit the ground with a terrific crash." "It caught fire, of course?" * * * * * "No, Doctor, that is one of the funny things about the accident. It didn't. It hit the ground in an open place free from brush and literally burst into pieces, but it didn't flame up. We headed directly for the scene of the crash and we encountered another funny thing. We almost froze to death." "What do you mean?"