How could a human body be found actually splintered--broken into sharp fragments like a shattered glass! Once again Dr. Bird probes deep into an amazing mystery.
[Illustration: "_The bodies had broken into pieces, as though they had been made of glass._"]
"Confound it, Carnes, I am on my vacation!"
"I know it, Doctor, and I hate to disturb you, but I felt that I simply had to. I have one of the weirdest cases on my hands that I have ever been mixed up in and I think that you'll forgive me for calling you when I tell you about it."
Dr. Bird groaned into the telephone transmitter.
"I took a vacation last summer, or tried to, and you hauled me away from the best fishing I have found in years to help you on a case. This year I traveled all the way from Washington to San Francisco to get away from you and the very day that I get here you are after me. I won't have anything to do with it. Where are you, anyway?"
"I am at Fallon, Nevada, Doctor. I'm sorry that you won't help me out because the case promises to be unusually interesting. Let me at least tell you about it."
Dr. Bird groaned louder than ever into the telephone transmitter.
"All right, go ahead and tell me about it if it will relieve your mind, but I have given you my final answer. I am not a bit interested in it."
"That is quite all right, Doctor, I don't expect you to touch it. I hope, however, that you will be able to give me an idea of where to start. Did you ever see a man's body broken in pieces?"
"No indeed, I mean just what I said, broken in pieces. Legs snapped off as though the entire flesh had become brittle."
"No, I didn't, and neither did anyone else."
Operative Carnes of the United States Secret Service chuckled softly to himself. The voice of the famous scientist of the Bureau of Standards plainly showed an interest which was quite at variance with his words.
"I was quite sober, Doctor, and so was Hughes, and we both saw it."
"He is an air mail pilot, one of the crack fliers of the Transcontinental Airmail Corporation. Let me tell you the whole thing in order."
"All right. I have a few minutes to spare, but I'll warn you again that I don't intend to touch the case."
"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.